Red Hat Security Advisory: python-kdcproxy security update
Affects Red Hat python-kdcproxySource GCVE Database
Mentioned vulnerabilities
Not known to be exploited · CVSS 8.6 High.
Data as of 26 Oct 2026, 09:15 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 41% 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:C/C:H/I:N/A:NExploitation evidence
Disclosed: evidence found.
CVE published 12 Nov 2025
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.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Red Hatredhat/python-kdcproxypkg:rpm/redhat/python-kdcproxyOther 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
Red Hat has released updated python-kdcproxy packages for Red Hat Enterprise Linux 9.4 Extended Update Support that address these vulnerabilities. Users should apply the security update as described in the Red Hat advisory RHSA-2025:21748 and the referenced article https://access.redhat.com/articles/11258. Applying this official patch fully mitigates the vulnerabilities. No additional mitigations are specified or required beyond installing the update.
Description
Two security vulnerabilities have been identified in the python-kdcproxy component of Red Hat Enterprise Linux 9.4 Extended Update Support. The first is an unauthenticated Server-Side Request Forgery (SSRF) vulnerability via realm-controlled DNS SRV records (CVE-2025-59088). The second is a remote denial-of-service (DoS) vulnerability caused by unbounded TCP upstream buffering (CVE-2025-59089). Red Hat has released an important security update addressing these issues for multiple architectures and variants of RHEL 9.4.
References
- access.redhat.com/errata/RHSA-2025:21748 (opens in a new tab)
- access.redhat.com/security/updates/classification/ (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2393955 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2393958 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2025/rhsa-2025_21748.json (opens in a new tab)