CVE-2024-37371: krb5 · n/a
Affects krb5Source CVE Database V5
Not known to be exploited · CVSS 9.1 Critical : upgrade to 1.21.3 as a priority.
Data as of 26 Oct 2026, 06:26 UTC
- EPSS
- 1.8% chance of exploitation in 30 days – higher than 79% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 1.21.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 28 Jun 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.
What to do
Upgrade krb5/krb5 to 1.21.3.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
GitHubkrb5/krb5pkg:github/krb5/krb5Other threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Upgrade MIT Kerberos 5 to version 1.21.3 or later, where this vulnerability is fixed. Patch status is confirmed by the version boundary provided. No other mitigation or workaround is indicated.
Description
In MIT Kerberos 5 (aka krb5) before 1.21.3, an attacker can cause invalid memory reads during GSS message token handling by sending message tokens with invalid length fields.
References
- web.mit.edu/kerberos/www/advisories/ (opens in a new tab)
- github.com/krb5/krb5/commit/55fbf435edbe2e92dd8101669b1ce7144bc96fef (opens in a new tab)
- security.netapp.com/advisory/ntap-20241108-0009/ (opens in a new tab)
- security.netapp.com/advisory/ntap-20250124-0010/ (opens in a new tab)
- cert-portal.siemens.com/productcert/html/ssa-082556.html (opens in a new tab)