Updated 12 h ago

Vulnerability database

Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.

1,762exploited flaws on CISA’s list

34added in the last 30 days

343new WordPress flaws this week

390,080entries in the database

25 results

Jun 14, 2026Linux-PAM through 1.7.2 contains an observable timing discrepancy (CWE-208) in the pam_userdb module's plaintext-password comparison path in modules/pam_userdb/CVE-2026-54411 · Computers, phones & browsers · Linux-PAM · reported by 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2cMedium 6.9
Linux-PAM through 1.7.2 contains an observable timing discrepancy (CWE-208) in the pam_userdb module's plaintext-password comparison path in modules/pam_userdb/pam_userdb.c that allows a local or network-adjacent attacker able to repeatedly drive authentication through a calling service to recover the plaintext password of a target account by measuring response-timing differences.
Product
Linux-PAM
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record cwe.mitre.org github.com
Aug 13, 2025A flaw was found in linux-pam.CVE-2025-8941 · Other software · Red Hat · reported by Red HatHigh 7.8
A flaw was found in linux-pam. The pam_namespace module may improperly handle user-controlled paths, allowing local users to exploit symlink attacks and race conditions to elevate their privileges to root. This CVE provides a "complete" fix for CVE-2025-6020.
Product
Red Hat Enterprise Linux 7 Extended Lifecycle Support
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record access.redhat.com access.redhat.com
Jun 17, 2025A flaw was found in linux-pam.CVE-2025-6020 · Other software · Red Hat · reported by Red HatHigh 7.8
A flaw was found in linux-pam. The module pam_namespace may use access user-controlled paths without proper protection, allowing local users to elevate their privileges to root via multiple symlink attacks and race conditions.
Product
Red Hat Enterprise Linux 10
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record access.redhat.com access.redhat.com
Feb 10, 2025PAM-PKCS#11 is a Linux-PAM login module that allows a X.509 certificate based user login.CVE-2025-24032 · Other software · OpenSC · reported by GitHubCritical 9.2
PAM-PKCS#11 is a Linux-PAM login module that allows a X.509 certificate based user login. Prior to version 0.6.13, if cert_policy is set to none (the default value), then pam_pkcs11 will only check if the user is capable of logging into the token. An attacker may create a different token with the user's public data (e.g. the user's certificate) and a PIN known to the attacker. If no signature with the private key is required, then the attacker may now login as user with that created token. The default to *not* check the private key's signature has been changed with commit commi6638576892b59a99389043c90a1e7dd4d783b921, so that all versions starting with pam_pkcs11-0.6.0 should be affected. As a workaround, in `pam_pkcs11.conf`, set at least `cert_policy = signature;`.
Product
pam_pkcs11
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com github.com
Feb 10, 2025PAM-PKCS#11 is a Linux-PAM login module that allows a X.509 certificate based user login.CVE-2025-24031 · Other software · OpenSC · reported by GitHubMedium 5.1
PAM-PKCS#11 is a Linux-PAM login module that allows a X.509 certificate based user login. In versions 0.6.12 and prior, the pam_pkcs11 module segfaults when a user presses ctrl-c/ctrl-d when they are asked for a PIN. When a user enters no PIN at all, `pam_get_pwd` will never initialize the password buffer pointer and as such `cleanse` will try to dereference an uninitialized pointer. On my system this pointer happens to have the value 3 most of the time when running sudo and as such it will segfault. The most likely impact to a system affected by this issue is an availability impact due to a daemon that uses PAM crashing. As of time of publication, a patch for the issue is unavailable.
Product
pam_pkcs11
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com github.com
Feb 6, 2024linux-pam (aka Linux PAM) before 1.6.0 allows attackers to cause a denial of service (blocked login process) via mkfifo because the openat call (for protect_dirCVE-2024-22365 · Other software · Siemens · reported by MITREMedium 5.5
linux-pam (aka Linux PAM) before 1.6.0 allows attackers to cause a denial of service (blocked login process) via mkfifo because the openat call (for protect_dir) lacks O_DIRECTORY.
Product
RUGGEDCOM ROX MX5000
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record openwall.com github.com
Sep 19, 2022The Linux-PAM package before 1.5.2-6.1 for openSUSE Tumbleweed allows authentication bypass for SSH logins.CVE-2022-28321 · Other software · Siemens · reported by MITRECritical 9.8
The Linux-PAM package before 1.5.2-6.1 for openSUSE Tumbleweed allows authentication bypass for SSH logins. The pam_access.so module doesn't correctly restrict login if a user tries to connect from an IP address that is not resolvable via DNS. In such conditions, a user with denied access to a machine can still get access. NOTE: the relevance of this issue is largely limited to openSUSE Tumbleweed and openSUSE Factory; it does not affect Linux-PAM upstream.
Product
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record download.opensuse.org bugzilla.suse.com
Jun 22, 2021pam_setquota.c in the pam_setquota module before 2020-05-29 for Linux-PAM allows local attackers to set their quota on an arbitrary filesystem, in certain situaCVE-2020-36394 · Other software · PAM Setquota Project · reported by MITREHigh 7
pam_setquota.c in the pam_setquota module before 2020-05-29 for Linux-PAM allows local attackers to set their quota on an arbitrary filesystem, in certain situations where the attacker's home directory is a FUSE filesystem mounted under /home.
Product
PAM Setquota
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record seclists.org seclists.org
Dec 17, 2020A flaw was found in Linux-Pam in versions prior to 1.5.1 in the way it handle empty passwords for non-existing users.CVE-2020-27780 · Computers, phones & browsers · Linux-pam · reported by Red HatCritical 9.8
A flaw was found in Linux-Pam in versions prior to 1.5.1 in the way it handle empty passwords for non-existing users. When the user doesn't exist PAM try to authenticate with root and in the case of an empty password it successfully authenticate.
Product
Linux-pam
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.redhat.com bugzilla.redhat.com
Aug 24, 2015The _unix_run_helper_binary function in the pam_unix module in Linux-PAM (aka pam) before 1.2.1, when unable to directly access passwords, allows local users toCVE-2015-3238 · Computers, phones & browsers · Linux-pam · reported by Red HatMedium 6.5
The _unix_run_helper_binary function in the pam_unix module in Linux-PAM (aka pam) before 1.2.1, when unable to directly access passwords, allows local users to enumerate usernames or cause a denial of service (hang) via a large password.
Product
Linux-pam
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record lists.fedoraproject.org lists.fedoraproject.org
Apr 10, 2014Multiple directory traversal vulnerabilities in pam_timestamp.c in the pam_timestamp module for Linux-PAM (aka pam) 1.1.8 allow local users to create arbitrary CVE-2014-2583 · Computers, phones & browsers · Linux-pam · reported by MITREMedium 5.8
Multiple directory traversal vulnerabilities in pam_timestamp.c in the pam_timestamp module for Linux-PAM (aka pam) 1.1.8 allow local users to create arbitrary files or possibly bypass authentication via a .. (dot dot) in the (1) PAM_RUSER value to the get_ruser function or (2) PAM_TTY value to the check_tty function, which is used by the format_timestamp_name function.
Product
Linux-pam
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record secunia.com openwall.com
Jul 22, 2012The _expand_arg function in the pam_env module (modules/pam_env/pam_env.c) in Linux-PAM (aka pam) before 1.1.5 does not properly handle when environment variablCVE-2011-3149 · Computers, phones & browsers · Linux-pam · reported by MITRELow 2.1
The _expand_arg function in the pam_env module (modules/pam_env/pam_env.c) in Linux-PAM (aka pam) before 1.1.5 does not properly handle when environment variable expansion can overflow, which allows local users to cause a denial of service (CPU consumption).
Product
Linux-pam
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record git.fedorahosted.org secunia.com
Jul 22, 2012Stack-based buffer overflow in the _assemble_line function in modules/pam_env/pam_env.c in Linux-PAM (aka pam) before 1.1.5 allows local users to cause a denialCVE-2011-3148 · Computers, phones & browsers · Linux-pam · reported by MITREMedium 4.6
Stack-based buffer overflow in the _assemble_line function in modules/pam_env/pam_env.c in Linux-PAM (aka pam) before 1.1.5 allows local users to cause a denial of service (crash) and possibly execute arbitrary code via a long string of white spaces at the beginning of the ~/.pam_environment file.
Product
Linux-pam
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record git.fedorahosted.org secunia.com
Jan 24, 2011The pam_env module in Linux-PAM (aka pam) 1.1.2 and earlier reads the .pam_environment file in a user's home directory, which might allow local users to run proCVE-2010-4708 · Computers, phones & browsers · Linux-pam · reported by MITREHigh 7.2
The pam_env module in Linux-PAM (aka pam) 1.1.2 and earlier reads the .pam_environment file in a user's home directory, which might allow local users to run programs with an unintended environment by executing a program that relies on the pam_env PAM check.
Product
Linux-pam
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record openwall.com pam.cvs.sourceforge.net
Jan 24, 2011The check_acl function in pam_xauth.c in the pam_xauth module in Linux-PAM (aka pam) 1.1.2 and earlier does not verify that a certain ACL file is a regular fileCVE-2010-4707 · Computers, phones & browsers · Linux-pam · reported by MITREMedium 4.9
The check_acl function in pam_xauth.c in the pam_xauth module in Linux-PAM (aka pam) 1.1.2 and earlier does not verify that a certain ACL file is a regular file, which might allow local users to cause a denial of service (resource consumption) via a special file.
Product
Linux-pam
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record git.altlinux.org openwall.com
Jan 24, 2011The pam_sm_close_session function in pam_xauth.c in the pam_xauth module in Linux-PAM (aka pam) 1.1.2 and earlier does not properly handle a failure to determinCVE-2010-4706 · Computers, phones & browsers · Linux-pam · reported by MITREMedium 4.9
The pam_sm_close_session function in pam_xauth.c in the pam_xauth module in Linux-PAM (aka pam) 1.1.2 and earlier does not properly handle a failure to determine a certain target uid, which might allow local users to delete unintended files by executing a program that relies on the pam_xauth PAM check.
Product
Linux-pam
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record git.altlinux.org openwall.com
Jan 24, 2011pam_namespace.c in the pam_namespace module in Linux-PAM (aka pam) before 1.1.3 uses the environment of the invoking application or service during execution of CVE-2010-3853 · Computers, phones & browsers · Linux-pam · reported by Red HatMedium 6.9
pam_namespace.c in the pam_namespace module in Linux-PAM (aka pam) before 1.1.3 uses the environment of the invoking application or service during execution of the namespace.init script, which might allow local users to gain privileges by running a setuid program that relies on the pam_namespace PAM check, as demonstrated by the sudo program.
Product
Linux-pam
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record lists.vmware.com pam.cvs.sourceforge.net
Jan 24, 2011The (1) pam_env and (2) pam_mail modules in Linux-PAM (aka pam) before 1.1.2 use root privileges during read access to files and directories that belong to arbiCVE-2010-3435 · Computers, phones & browsers · Linux-pam · reported by Red HatMedium 4.7
The (1) pam_env and (2) pam_mail modules in Linux-PAM (aka pam) before 1.1.2 use root privileges during read access to files and directories that belong to arbitrary user accounts, which might allow local users to obtain sensitive information by leveraging this filesystem activity, as demonstrated by a symlink attack on the .pam_environment file in a user's home directory.
Product
Linux-pam
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record git.altlinux.org lists.vmware.com
Jan 24, 2011The privilege-dropping implementation in the (1) pam_env and (2) pam_mail modules in Linux-PAM (aka pam) 1.1.2 does not check the return value of the setfsuid sCVE-2010-3431 · Computers, phones & browsers · Linux-pam · reported by Red HatLow 1.9
The privilege-dropping implementation in the (1) pam_env and (2) pam_mail modules in Linux-PAM (aka pam) 1.1.2 does not check the return value of the setfsuid system call, which might allow local users to obtain sensitive information by leveraging an unintended uid, as demonstrated by a symlink attack on the .pam_environment file in a user's home directory. NOTE: this vulnerability exists because of an incomplete fix for CVE-2010-3435.
Product
Linux-pam
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record git.altlinux.org openwall.com
Jan 24, 2011The privilege-dropping implementation in the (1) pam_env and (2) pam_mail modules in Linux-PAM (aka pam) 1.1.2 does not perform the required setfsgid and setgroCVE-2010-3430 · Computers, phones & browsers · Linux-pam · reported by Red HatMedium 4.7
The privilege-dropping implementation in the (1) pam_env and (2) pam_mail modules in Linux-PAM (aka pam) 1.1.2 does not perform the required setfsgid and setgroups system calls, which might allow local users to obtain sensitive information by leveraging unintended group permissions, as demonstrated by a symlink attack on the .pam_environment file in a user's home directory. NOTE: this vulnerability exists because of an incomplete fix for CVE-2010-3435.
Product
Linux-pam
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record git.altlinux.org openwall.com
Jan 24, 2011The run_coprocess function in pam_xauth.c in the pam_xauth module in Linux-PAM (aka pam) before 1.1.2 does not check the return values of the setuid, setgid, anCVE-2010-3316 · Computers, phones & browsers · Linux-pam · reported by Red HatLow 3.3
The run_coprocess function in pam_xauth.c in the pam_xauth module in Linux-PAM (aka pam) before 1.1.2 does not check the return values of the setuid, setgid, and setgroups system calls, which might allow local users to read arbitrary files by executing a program that relies on the pam_xauth PAM check.
Product
Linux-pam
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record git.altlinux.org lists.vmware.com
Apr 16, 2009Linux-PAM before 1.0.4 does not enforce the minimum password age (MINDAYS) as specified in /etc/shadow, which allows local users to bypass intended security polCVE-2009-0579 · Computers, phones & browsers · Linux-pam · reported by Red HatMedium 4.6
Linux-PAM before 1.0.4 does not enforce the minimum password age (MINDAYS) as specified in /etc/shadow, which allows local users to bypass intended security policy and change their passwords sooner than specified.
Product
Linux-pam
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugs.debian.org secunia.com
Mar 12, 2009Integer signedness error in the _pam_StrTok function in libpam/pam_misc.c in Linux-PAM (aka pam) 1.0.3 and earlier, when a configuration file contains non-ASCIICVE-2009-0887 · Computers, phones & browsers · Linux-pam · reported by MITREMedium 6.6
Integer signedness error in the _pam_StrTok function in libpam/pam_misc.c in Linux-PAM (aka pam) 1.0.3 and earlier, when a configuration file contains non-ASCII usernames, might allow remote attackers to cause a denial of service, and might allow remote authenticated users to obtain login access with a different user's non-ASCII username, via a login attempt.
Product
Linux-pam
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record openwall.com pam.cvs.sourceforge.net
Jan 23, 2007pam_unix.so in Linux-PAM 0.99.7.0 allows context-dependent attackers to log into accounts whose password hash, as stored in /etc/passwd or /etc/shadow, has onlyCVE-2007-0003 · Other software · Andrew Morgan · reported by Red HatHigh 7.2
pam_unix.so in Linux-PAM 0.99.7.0 allows context-dependent attackers to log into accounts whose password hash, as stored in /etc/passwd or /etc/shadow, has only two characters.
Product
Linux PAM
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record osvdb.org secunia.com
Jul 24, 2003pam_wheel in Linux-PAM 0.78, with the trust option enabled and the use_uid option disabled, allows local users to spoof log entries and gain privileges by causiCVE-2003-0388 · Other software · Andrew Morgan · reported by MITREMedium 4.6
pam_wheel in Linux-PAM 0.78, with the trust option enabled and the use_uid option disabled, allows local users to spoof log entries and gain privileges by causing getlogin() to return a spoofed user name.
Product
Linux PAM
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record marc.info idefense.com

Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.

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