Critical security advisoryCriticalFlagged by our vulnerability database: PHP2Shell is on CISA’s exploited list. Most WordPress hosting runs PHP. See if your site is affectedFlagged by our vulnerability database: PHP2Shell is being exploited. DetailsExploited: PHP2Shell. Check your site
HuttenlocherTechnologies
Updated 4 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.

1,766exploited flaws on CISA’s list
36added in the last 30 days
587new WordPress flaws this week
391,288entries in the database

462 results · page 10 of 10

  • Aug 12, 2002Buffer overflow in DNS resolver functions that perform lookup of network names and addresses, as used in BIND 4.9.8 and ported to glibc 2.2.5 and earlier, allowCVE-2002-0684 · Other software · GNU · reported by MITREHigh 7.5

    Buffer overflow in DNS resolver functions that perform lookup of network names and addresses, as used in BIND 4.9.8 and ported to glibc 2.2.5 and earlier, allows remote malicious DNS servers to execute arbitrary code through a subroutine used by functions such as getnetbyname and getnetbyaddr.

    Product
    Glibc
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 12, 2002Bugzilla 2.14 before 2.14.2, and 2.16 before 2.16rc2, when configured to perform reverse DNS lookups, allows remote attackers to bypass IP restrictions by conneCVE-2002-0804 · Computers, phones & browsers · Mozilla · reported by MITREHigh 7.5

    Bugzilla 2.14 before 2.14.2, and 2.16 before 2.16rc2, when configured to perform reverse DNS lookups, allows remote attackers to bypass IP restrictions by connecting from a system with a spoofed reverse DNS hostname.

    Product
    Bugzilla
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 25, 2002XChat IRC client allows remote attackers to execute arbitrary commands via a /dns command on a host whose DNS reverse lookup contains shell metacharacters.CVE-2002-0382 · Other software · Xchat · reported by MITREHigh 7.5

    XChat IRC client allows remote attackers to execute arbitrary commands via a /dns command on a host whose DNS reverse lookup contains shell metacharacters.

    Product
    Xchat
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 22, 2002Buffer overflow in Webalizer 2.01-06, when configured to use reverse DNS lookups, allows remote attackers to execute arbitrary code by connecting to the monitorCVE-2002-0180 · Other software · Bradford Barrett · reported by MITREHigh 7.5

    Buffer overflow in Webalizer 2.01-06, when configured to use reverse DNS lookups, allows remote attackers to execute arbitrary code by connecting to the monitored web server from an IP address that resolves to a long hostname.

    Product
    Webalizer
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 31, 2001Open Projects Network Internet Relay Chat (IRC) daemon u2.10.05.18 does not perform a double-reverse DNS lookup, which allows remote attackers to spoof any valiCVE-2001-1488 · Other software · Open Projects Network · reported by MITREMedium 5

    Open Projects Network Internet Relay Chat (IRC) daemon u2.10.05.18 does not perform a double-reverse DNS lookup, which allows remote attackers to spoof any valid hostname on the Internet. NOTE: a followup post suggests that this is not an issue in the daemon.

    Product
    Open Projects Network Ircd
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 23, 2001TCP Wrappers (tcp_wrappers) in FreeBSD 4.1.1 through 4.3 with the PARANOID ACL option enabled does not properly check the result of a reverse DNS lookup, which CVE-2001-1155 · Other software · Freebsd · reported by MITRECritical 9.8

    TCP Wrappers (tcp_wrappers) in FreeBSD 4.1.1 through 4.3 with the PARANOID ACL option enabled does not properly check the result of a reverse DNS lookup, which could allow remote attackers to bypass intended access restrictions via DNS spoofing.

    Product
    Freebsd
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Mar 26, 2001Buffer overflow in bing allows remote attackers to execute arbitrary commands via a long hostname, which is copied to a small buffer after a reverse DNS lookup CVE-2001-0207 · Other software · Pierre Beyssac · reported by MITREHigh 10

    Buffer overflow in bing allows remote attackers to execute arbitrary commands via a long hostname, which is copied to a small buffer after a reverse DNS lookup using the gethostbyaddr function.

    Product
    Bing
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Feb 12, 2001Buffer overflow in nslookupComplain function in BIND 4 allows remote attackers to gain root privileges.CVE-2001-0011 · Other software · ISC · reported by MITREHigh 10

    Buffer overflow in nslookupComplain function in BIND 4 allows remote attackers to gain root privileges.

    Product
    Bind
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Feb 12, 2001Format string vulnerability in nslookupComplain function in BIND 4 allows remote attackers to gain root privileges.CVE-2001-0013 · Other software · ISC · reported by MITREHigh 10

    Format string vulnerability in nslookupComplain function in BIND 4 allows remote attackers to gain root privileges.

    Product
    Bind
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 16, 1999Windows NT Local Security Authority (LSA) allows remote attackers to cause a denial of service via malformed arguments to the LsaLookupSids function which looksCVE-1999-0995 · Computers, phones & browsers · Microsoft · reported by MITREHigh 7.8

    Windows NT Local Security Authority (LSA) allows remote attackers to cause a denial of service via malformed arguments to the LsaLookupSids function which looks up the SID, aka "Malformed Security Identifier Request."

    Product
    Windows NT
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Nov 9, 1999Whois Internic Lookup program whois.cgi allows remote attackers to execute commands via shell metacharacters in the domain entry.CVE-1999-0983 · Other software · Internic · reported by MITREHigh 7.5

    Whois Internic Lookup program whois.cgi allows remote attackers to execute commands via shell metacharacters in the domain entry.

    Product
    Whois Lookup
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 30, 1999Buffer overflow in nslookup for AIX 4.3 allows local users to execute arbitrary code via a long hostname command line argument.CVE-1999-1583 · Other software · IBM · reported by MITREHigh 7.2

    Buffer overflow in nslookup for AIX 4.3 allows local users to execute arbitrary code via a long hostname command line argument.

    Product
    AIX
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.

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.

Weekly security brief

The flaws that hit local websites, every Friday.

One short email: what got exploited this week, which WordPress plugins broke, and what to check. Unsubscribe in one click.

Get in touch

Tell us what you're building.

A website, your marketing, a security check, an app, or the thing you've been running out of a spreadsheet for three years. A few lines is plenty.

01The person who'll do the work writes back
02A short call, then a written plan with the price
03Nothing starts until you say yes
04Hacked or down right now? Call, and we pick up the same day
843-331-6339

Not ready to talk yet? Run the free website check and see what Google sees.

What do you need?
Build
Grow
Protect
Urgent

No newsletter, no sales sequence. Just a reply.