CVE-2025-8176VulnerabilityPublished 10 Nov 2025Updated 11 Jul 2026

Red Hat Security Advisory: libtiff security update

Affects Red Hat libtiffSource GCVE Database

Authoritative record:CVE-2025-8176· Medium 4.8

Not known to be exploited · CVSS 4.8 Medium : upgrade the Red Hat redhat/libtiff package to 8.10 when convenient.

Data as of 26 Oct 2026, 09:16 UTC

CVSS 4.0 base score

4.8Medium

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

EPSS: 0.2% chance of exploitation in 30 days – higher than 18% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 8.10

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

Exploitation evidence

Disclosed: evidence found.
CVE published 26 Jul 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.

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 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

Upgrade the Red Hat redhat/libtiff package to 8.10.

Affected software

Product	Affected	Fixed in
Red Hatredhat/libtiff`pkg:rpm/redhat/libtiff`Other threats	Affected =8.10 <8.10	Fixed in 8.10

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 libtiff packages that fix the use-after-free vulnerability. Users of affected Red Hat Enterprise Linux 8 and CodeReady Linux Builder variants should apply the security update as detailed in the Red Hat advisory RHSA-2025:20034 and the referenced article https://access.redhat.com/articles/11258. Applying these official patches is the recommended and effective mitigation. There is no indication that additional mitigation steps are required beyond applying the update.

Description

The libtiff packages contain a library of functions for manipulating Tagged Image File Format (TIFF) files. Security Fix(es): * libtiff: LibTIFF Use-After-Free Vulnerability (CVE-2025-8176) 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 use-after-free vulnerability in libtiff could allow an attacker to cause memory corruption, which may lead to application crashes or potentially arbitrary code execution depending on the context of use. The advisory rates the security impact as important (high severity), indicating a significant risk if exploited. No known exploits in the wild have been reported at this time.

Summary

The libtiff library contained a use-after-free vulnerability (CVE-2025-8176) that could potentially lead to security issues when processing TIFF files. Red Hat Product Security published an advisory (RHSA-2025:20034) describing this vulnerability and released updated libtiff packages for Red Hat Enterprise Linux 8 and CodeReady Linux Builder variants on x86_64, IBM z Systems, Power little endian, and ARM 64 architectures. The advisory rates the issue as important and provides links to updated packages and instructions for applying the update. No CVSS score is currently available for this vulnerability.

CWE-825Expired Pointer Dereference (opens in a new tab)
Base weakness
The product dereferences a pointer that contains a location for memory that was previously valid, but is no longer valid.
Architecture and Design
Choose a language that provides automatic memory management.
Implementation
When freeing pointers, be sure to set them to NULL once they are freed. However, the utilization of multiple or complex data structures may lower the usefulness of this strategy.
OWASP Cheat Sheets
XML Security (opens in a new tab)
Mass Assignment (opens in a new tab)
OWASP ASVS 4.0.3
V13.3.1 (opens in a new tab)
V5.1.4 (opens in a new tab)
V5.1.3 (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 12 Jul 2026, 11:13 UTC

WeaknessesCWE-825

Technical details

References

Community reviews

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