ZDF
Sign inSign up

Vulnerabilities

Vulnerability · CVE-2025-62507

Redis is an open source, in-memory database that persists on disk.

Published Nov 2, 2025 · catalog updated Feb 26, 2026 · Redis Redis

Last checked Oct 31, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-62507. EPSS is 7.47%. Act only if a listed version of Redis Redis is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High7.7
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
7.47%
Remediation
Version ranges on file
Affected products
cpe redis/redis · vendor Redis Redis 8.2.0, < 8.2.3

### Impact A user can run the XACKDEL command with multiple ID's and trigger a stack buffer overflow, which may potentially lead to remote code execution. The problem exists in Redis 8.2 or newer. ### Details The code doesn't handle the case where the number of ID's exceeds the STREAMID_STATIC_VECTOR_LEN, and skips a reallocation, which leads to a stack buffer overflow. ### Workarounds An additional workaround to mitigate the problem without patching the redis-server executable is to prevent users from executing XACKDEL operation. This can be done using ACL to restrict XACKDEL command. ### Credits The problem was reported by Google Big Sleep

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe redis/redis< 8.2.3
  • vendor Redis Redis 8.2.0, < 8.2.38.2.0, < 8.2.3

How to fix CVE-2025-62507

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-62507. EPSS is 7.47%. Act only if a listed version of Redis Redis is installed.

Which versions are affected?

Compare what you have installed with Redis Redis 8.2.0, < 8.2.3 8.2.0, < 8.2.3. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-121: Stack-based Buffer Overflow; CWE-20: Improper Input Validation; CWE-787: Out-of-bounds Write. EPSS 7.47%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Redis security

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Nov 4, 2025 · EUVD

    Detected

    Redis is an open source, in-memory database that persists on disk. In versions 8.2.0 and above, a user can run the XACKDEL command with multiple ID's and trigger a stack buffer overflow, which may potentially lead to remote code execution. This issue is fixed in version 8.2.3. To workaround this issue without patching the redis-server executable is to prevent users from executing XACKDEL operation

  2. Feb 26, 2026 · EUVD

    Updated

    Redis is an open source, in-memory database that persists on disk. In versions 8.2.0 and above, a user can run the XACKDEL command with multiple ID's and trigger a stack buffer overflow, which may potentially lead to remote code execution. This issue is fixed in version 8.2.3. To workaround this issue without patching the redis-server executable is to prevent users from executing XACKDEL operation

Sources

  • CVE.orgVulnerability recordCVE-2025-62507

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-62507

    30-day exploitation probability 7.47%

    first.org
  • EUVDVulnerability recordEUVD-2025-37903

    Redis is an open source, in-memory database that persists on disk. In versions 8.2.0 and above, a user can run the XACKDEL command with multiple ID's and trigger a stack buffer overflow, which may potentially lead to remote code execution. This issue is fixed in version 8.2.3. To

    euvd.enisa.europa.eu
  • Maintainer security tabsVendor advisoryGHSA-jhjx-x4cf-4vm8

    ### Impact A user can run the XACKDEL command with multiple ID's and trigger a stack buffer overflow, which may potentially lead to remote code execution. The problem exists in Redis 8.2 or newer. ### Details The code doesn't handle the case where the number of ID's exceeds the STREAMID_STATIC_VECTOR_LEN, and skips a reallocation, which leads to a stack buffer overflow. ### Workarounds An addition

    github.com
  • Monitored products — highVendor advisoryCVE-2025-62507

    Redis is an open source, in-memory database that persists on disk. In versions 8.2.0 and above, a user can run the XACKDEL command with multiple ID's and trigger a stack buffer overflow, which may potentially lead to remote code execution. This issue is fixed in version 8.2.3. To workaround this issue without patching the redis-server executable is to prevent users from executing XACKDEL operation

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 31, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 31, 2026
  • Maintainer security tabsOct 31, 2026
  • Monitored products — highOct 31, 2026
  • CVE.orgOct 24, 2026
  • EUVDOct 24, 2026