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TI-2025-08464 Aliases CVE-2025-9232GHSA-76r2-c3cg-f5r9

Out-of-bounds read in HTTP client no_proxy handling

Priority LOW 30CWE-125Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 1 fixed, 5 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-125 and the CVSS impact.

Summary

Issue summary: An application using the OpenSSL HTTP client API functions may trigger an out-of-bounds read if the 'no_proxy' environment variable is set and the host portion of the authority component of the HTTP URL is an IPv6 address. Impact summary: An out-of-bounds read can trigger a crash which leads to Denial of Service for an application. The OpenSSL HTTP client API functions can be used directly by applications but they are also used by the OCSP client functions and CMP (Certificate Management Protocol) client implementation in OpenSSL. However the URLs used by these implementations are unlikely to be controlled by an attacker. In this vulnerable code the out of bounds read can only trigger a crash. Furthermore the vulnerability requires an attacker-controlled URL to be passed from an application to the OpenSSL function and the user has to have a 'no_proxy' environment variable set. For the aforementioned reasons the issue was assessed as Low severity. The vulnerable code was introduced in the following patch releases: 3.0.16, 3.1.8, 3.2.4, 3.3.3, 3.4.0 and 3.5.0. The FIPS modules in 3.5, 3.4, 3.3, 3.2, 3.1 and 3.0 are not affected by this issue, as the HTTP client implementation is outside the OpenSSL FIPS module boundary.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.02001 80th percentileScored 2026-11-07
Fix Partial OpenSSL (OpenSSL): 3.5.4, 3.4.3, 3.3.5 +2Red Hat: 1 advisoryRed Hat: 1 fixed, 5 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
OpenSSLOpenSSL3.5.0 to before 3.5.4; 3.4.0 to before 3.4.3; 3.3.3 to before 3.3.5; 3.2.4 to before 3.2.6; 3.0.16 to before 3.0.183.5.4, 3.4.3, 3.3.5, 3.2.6, 3.0.18Patch availableCNA
  • OpenSSL VendorOpenSSL Affected 3.5.0 to before 3.5.4; 3.4.0 to before 3.4.3; 3.3.3 to before 3.3.5; 3.2.4 to before 3.2.6; 3.0.16 to before 3.0.18 Fixed in 3.5.4, 3.4.3, 3.3.5, 3.2.6, 3.0.18 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*——OpenSSL
  • cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* Versions — — ·OpenSSL

Remediation

  • Fix · CNA OpenSSL (OpenSSL) Fixed in 3.5.4, 3.4.3, 3.3.5, 3.2.6, 3.0.18

Red Hat 1 advisory

  • RHSA-2026:7261 Released 2026-04-09 · Red Hat rating Important
    Red Hat Hardened Images RPMs bug fix and enhancement update
    • Red Hat Hardened Images openssl-3.5.6-0.1.hum1@aarch64, openssl-3.5.6-0.1.hum1@src, openssl-3.5.6-0.1.hum1@x86_64 +10

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    OpenSSL — openssl-library.org/news/secadv/20250930.txt

    3 records Highest priority Priority MEDIUM 1 MEDIUM, 2 LOW

    Other records, highest priority first

    • TI-2025-08462 Out-of-bounds read & write in RFC 3211 KEK UnwrapPriority MEDIUM 52
    • TI-2025-08463 Timing side-channel in SM2 algorithm on 64 bit ARMPriority LOW 29
    Show all 3 records → Advisory →

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 10AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 9AffectedNo fix yet: Fix deferred
Red Hat JBoss Core ServicesAffectedNo fix yet: Fix deferred
Red Hat OpenShift AI (RHOAI)Affected—
Red Hat OpenShift Container Platform 4AffectedNo fix yet: Fix deferred
Red Hat Hardened ImagesFixed RHSA-2026:7261
Not affected: 6 products
  • Red Hat Enterprise Linux 10
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9
  • Red Hat OpenShift AI (RHOAI)

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-9232
  2. 2026-10-03 Alias added: GHSA-76r2-c3cg-f5r9
  3. 2026-11-06 Affected versions changed · Red Hat

References

Patch 5

Advisory 1

  • TI-2022-01915 The c_rehash script allows command injection CVSS 3.1CRITICAL 9.8
  • TI-2021-02645 SM2 Decryption Buffer Overflow CVSS 3.1CRITICAL 9.8
  • TI-2009-03392 The TLS protocol, and the SSL protocol 3.0 and possibly earlier, as used in Microsoft… CVSS 3.1CRITICAL 9.8
  • TI-2022-01176 The c_rehash script allows command injection CVSS 3.1CRITICAL 9.8
  • TI-2014-00154 The (1) TLS and (2) DTLS implementations in OpenSSL 1.0.1 before 1.0.1g do not properly… KEVCVSS 3.1HIGH 7.5
  • TI-2025-14107 Stack buffer overflow in CMS (Auth)EnvelopedData parsing CVSS 3.1HIGH 8.8
See all 323 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences