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CVE-2018-25010

28
FAUCET Score

CVE-2018-25010 describes a critical heap-based buffer overflow vulnerability in libwebp, specifically within the ApplyFilter() function, affecting versions prior to 1.0.1. This flaw impacts products like Red Hat Enterprise Linux and WebM Project libwebp. With a CVSS score of 9.1 (CRITICAL), it presents a high-severity risk, allowing unauthenticated attackers to achieve high confidentiality and availability impacts over the network with low complexity. While there is no evidence of active exploitation (KEV: No) and no public exploit code (Metasploit, Nuclei, ExploitDB: None), the vulnerability has garnered some community discussion and media coverage, indicating awareness within the security community.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.0.1CPE matchmatch criteria
cpe:2.3:a:webmproject:libwebp:*:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.1CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.23%
Probability of exploitation in next 30 days
EPSS Percentile
81.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0223 is in the 70th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

microsoftpatch availablevia msrc
Product: 16967-16820Fixed in: 1.0.3-1
microsoftpatch availablevia msrc
Product: cm1 libwebp 1.0.3-1 on CBL Mariner 1.0Fixed in: 1.0.3-1
redhatpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: libwebp-0:1.0.0-5.el8
View patch

Vendor Advisories (2)

microsoft2021-May/CVE-2018-25010Critical

A heap-based buffer overflow was found in libwebp in versions before 1.0.1 in ApplyFilter().

May 11, 2021
redhatCVE-2018-25010Moderate

libwebp: out-of-bounds read in ApplyFilter()

Jul 30, 2018

References

bugs.chromium.org / p/oss-fuzz/issues/detail
Issue TrackingThird Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingPatchThird Party Advisory
chromium.googlesource.com / webm/libwebp/+/1344a2e947c749d231141a295327e5b99b444d63
Third Party Advisory