CVE-2025-8177

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.32% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 25.6% of scored records. A rank, not a probability.

NVD base score

4.8 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

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:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2025-07-26 04:02Z1 YR AGO

Last updated

2025-07-28 18:34Z1 YR AGO

Reserved

2025-07-25

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 4.8)

CNA CVSS vector

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:X

Weaknesses

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass
• CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')Base

Data version

5.1

Document digest

1b843eda11753d4d7d8042ba03c8aa653da6e6530eff0a4ce815d534c2ecb3bc

• vuldb.comVDB-317591 | LibTIFF thumbnail.c setrow buffer overflowhttps://vuldb.com/?id.317591vdb-entrytechnical-description
• vuldb.comVDB-317591 | CTI Indicators (IOB, IOC, IOA)https://vuldb.com/?ctiid.317591signaturepermissions-required
• vuldb.comSubmit #621797 | LibTIFF v4.7.0 Buffer Overflowhttps://vuldb.com/?submit.621797third-party-advisory
• gitlab.comhttps://gitlab.com/libtiff/libtiff/-/issues/715issue-tracking
• gitlab.comhttps://gitlab.com/libtiff/libtiff/-/merge_requests/737patch
• gitlab.comhttps://gitlab.com/libtiff/libtiff/-/commit/e8c9d6c616b19438695fd829e58ae4fde5bfbc22patch
• www.libtiff.orghttp://www.libtiff.org/product