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.

1,762exploited flaws on CISA’s list
34added in the last 30 days
344new WordPress flaws this week
390,080entries in the database

5 results

  • Sep 24, 2026hiredis commit 29ea279 (post-v1.5.0) contains an uncontrolled memory allocation vulnerability in its RESP aggregate parser.CVE-2026-88382 · Other software · reported by MITREHigh 7.5

    hiredis commit 29ea279 (post-v1.5.0) contains an uncontrolled memory allocation vulnerability in its RESP aggregate parser.

    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jan 27, 2026Integer Overflow or Wraparound vulnerability in swoole swoole-src (thirdparty/hiredis modules).CVE-2026-24814 · Other software · swoole · reported by cve_disclosure@tech.gov.sgCritical 10

    Integer Overflow or Wraparound vulnerability in swoole swoole-src (thirdparty/hiredis modules). This vulnerability is associated with program files sds.C. This issue affects swoole-src: before 6.0.2.

    Product
    swoole-src
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jan 23, 2024Redis raft master-1b8bd86 to master-7b46079 was discovered to contain an ODR violation via the component hiredisAllocFns at /opt/fs/redisraft/deps/hiredis/allocCVE-2023-31654 · Other software · Redis · reported by MITRECritical 9.8

    Redis raft master-1b8bd86 to master-7b46079 was discovered to contain an ODR violation via the component hiredisAllocFns at /opt/fs/redisraft/deps/hiredis/alloc.c.

    Product
    Redisraft
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 4, 2021Hiredis is a minimalistic C client library for the Redis database.CVE-2021-32765 · Other software · redis · reported by GitHubHigh 8.8

    Hiredis is a minimalistic C client library for the Redis database. In affected versions Hiredis is vulnurable to integer overflow if provided maliciously crafted or corrupted `RESP` `mult-bulk` protocol data. When parsing `multi-bulk` (array-like) replies, hiredis fails to check if `count * sizeof(redisReply*)` can be represented in `SIZE_MAX`. If it can not, and the `calloc()` call doesn't itself make this check, it would result in a short allocation and subsequent buffer overflow. Users of hiredis who are unable to update may set the [maxelements](https://github.com/redis/hiredis#reader-max-array-elements) context option to a value small enough that no overflow is possible.

    Product
    hiredis
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jan 15, 2020async.c and dict.c in libhiredis.a in hiredis through 0.14.0 allow a NULL pointer dereference because malloc return values are unchecked.CVE-2020-7105 · Other software · Redislabs · reported by MITREHigh 7.5

    async.c and dict.c in libhiredis.a in hiredis through 0.14.0 allow a NULL pointer dereference because malloc return values are unchecked.

    Product
    Hiredis
    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.

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