Red Hat Security Advisory: Red Hat JBoss Web Server 6.1.2 release and security update
Affects Red HatSource GCVE Database
Mentioned vulnerabilities
Not known to be exploited · CVSS 7.5 High : upgrade Red Hat to 6.1.2 soon.
Data as of 26 Oct 2026, 10:12 UTC
- EPSS
- 3.6% chance of exploitation in 30 days – higher than 89% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 6.1.2
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 13 Aug 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
Upgrade Red Hat to 6.1.2.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Red Hat Product Security Red Hat | Affected
| Fixed in
|
AI-suggested
Red Hat has released Red Hat JBoss Web Server 6.1.2 as a replacement for version 6.1.1, which includes fixes for these vulnerabilities. Users should back up their existing installations and apply the update to remediate the issues. The update is available from Red Hat's customer portal and requires login to download. No alternative mitigations or workarounds are specified in the advisory.
Description
Red Hat JBoss Web Server 6.1.2 includes security updates addressing two denial of service vulnerabilities in the Apache Tomcat component. These vulnerabilities are identified as CVE-2025-52520 and CVE-2025-48989, the latter involving an HTTP/2 "MadeYouReset" DoS attack through HTTP/2 control frames. The update replaces version 6.1.1 and includes bug fixes and component upgrades. Red Hat rates the security impact as Important. No CVSS scores are provided in the advisory.
References
- access.redhat.com/errata/RHSA-2025:13686 (opens in a new tab)
- access.redhat.com/security/updates/classification/ (opens in a new tab)
- docs.redhat.com/en/documentation/red_hat_jboss_web_server/6.1/html/red_hat_jboss_web_server_6.1_service_pack_2_release_notes/index (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2373309 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2379374 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2025/rhsa-2025_13686.json (opens in a new tab)