CVE-2025-9900

HIGH
MEDIUM Priority: 0.09 BB Relevance: 68/100
Published: 2025-09-23 Modified: 2026-11-04 First seen: 2026-11-03 Status: active

Attack Surface

Network Low Complexity No Auth Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: Required
S: Unchanged
C: High
I: High
A: High

Description

A flaw was found in Libtiff. This vulnerability is a "write-what-where" condition, triggered when the library processes a specially crafted TIFF image file. By providing an abnormally large image height value in the file's metadata, an attacker can trick the library into writing attacker-controlled color data to an arbitrary memory location. This memory corruption can be exploited to cause a denial of service (application crash) or to achieve arbitrary code execution with the permissions of the user.

Weakness Classification (1)

Affected Software (3)

VendorProductVersion
— — 0 < 4.7.1
— — 0 < 4.7.1
— — 0 < 4.7.1

References & Advisories (39)

https://access.redhat.com/errata/RHSA-2025:17651
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:17675
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:17710
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:17738
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:17739
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:17740
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:19113
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:19156
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:19276
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:19906
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:19947
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:20956
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:20998
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:21060
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:21061
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:21062
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:21407
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:21506
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:21507
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:21508
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:21994
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:23078
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:23079
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:23080
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:0001
vendor-advisory x_refsource_REDHAT
Showing 25 of 39 references

Bug Bounty Relevance

68 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity

CVSS Score

8.8 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

1.00%
Raw Score 0.010050
Percentile 63.5%
Date 2026-11-14

EPSS Trend

2026-11-14
0.01005
2026-11-13
0.01005
2026-11-12
0.01005
2026-11-10
0.01005
2026-11-09
0.01005
2026-11-08
0.01005
2026-11-07
0.01005
2026-11-06
0.01005
2026-11-05
0.01005
2026-11-04
0.01005
2026-11-03
0.01005

Intelligence Sources

mitre ref →
nvd ref →