CVE-2024-37370VulnerabilityPublished 20 Aug 2024Updated 18 Jul 2026

Red Hat Security Advisory: krb5 security update

Affects Red Hat krb5Source GCVE Database

Mentioned vulnerabilities

CVE-2024-37371

Authoritative record:CVE-2024-37370· High 7.5

Not known to be exploited · CVSS 7.5 High.

Data as of 26 Oct 2026, 10:12 UTC

CVSS 3.1 base score

7.5High

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.7% chance of exploitation in 30 days – higher than 54% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: None
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: High: There is total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation 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 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
Red Hat Product Security Red Hat	Affected Red Hat Red Hat Enterprise Linux Red Hat Enterprise Linux AppStream EUS (v.9.2) Red Hat Enterprise Linux BaseOS EUS (v.9.2) aarch64	Fixed in–

AI-suggested

Red Hat has released updated krb5 packages for Red Hat Enterprise Linux 9.2 Extended Update Support and related variants that fix these vulnerabilities. Users should apply the official security update as described in Red Hat advisory RHSA-2024:5643 and the referenced article https://access.redhat.com/articles/11258 to remediate the issues. No additional mitigation steps are indicated or required beyond applying the official patch.

Description

Kerberos is a network authentication system, which can improve the security of your network by eliminating the insecure practice of sending passwords over the network in unencrypted form. It allows clients and servers to authenticate to each other with the help of a trusted third party, the Kerberos key distribution center (KDC). Security Fix(es): * krb5: GSS message token handling (CVE-2024-37371) * krb5: GSS message token handling (CVE-2024-37370) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Impact

The vulnerabilities affect the GSS message token handling in krb5, which is critical for secure mutual authentication in Kerberos. Exploitation could undermine the integrity of the authentication process, potentially allowing attackers to interfere with or bypass authentication mechanisms. However, the advisory does not provide detailed impact scenarios or confirm active exploitation in the wild. The overall security impact is rated moderate by Red Hat.

Summary

This advisory covers two moderate severity vulnerabilities in the krb5 package used in Red Hat Enterprise Linux 9.2 Extended Update Support and related variants. Both CVE-2024-37370 and CVE-2024-37371 involve issues in GSS message token handling within the Kerberos authentication system. The vulnerabilities could potentially impact the secure authentication process facilitated by the Kerberos Key Distribution Center (KDC). Red Hat has released updated krb5 packages to address these issues. The advisory references Red Hat Bugzilla entries BZ-2294676 and BZ-2294677 for the respective CVEs. No CVSS scores are provided in the advisory, but the severity is rated as moderate by Red Hat Product Security.

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 4 Jul 2026, 01:29 UTC

Technical details

References

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