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Fencer Vulns
high 8.8

CVE-2018-14046 json

Exiv2 0.26 has a heap-based buffer over-read in WebPImage::decodeChunks in webpimage.cpp.

published 2018-07-13 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-0058

cvss
8.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.7%
EPSS 1.7% chance of exploitation in 30 days, percentile 77%
public exploits
0
none known

Summary

Exiv2 0.26 has a heap-based buffer over-read in WebPImage::decodeChunks in webpimage.cpp.

Patch / fix

  • exiv2 RHEL 7 0.27.0-2.el7_6
  • exiv2-libs RHEL 7 0.27.0-2.el7_6

red hat advisories RHSA-2019:2101

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-14046 updated cvss 3.3

exiv2: heap-based buffer over-read in WebPImage::decodeChunks in webpimage.cpp

  • Red Hat Enterprise Linux Client (v. 7) exiv2 0.27.0-2.el7_6, exiv2-libs 0.27.0-2.el7_6 Red Hat Enterprise Linux Client Optional (v. 7) exiv2-doc 0.27.0-2.el7_6, exiv2-devel 0.27.0-2.el7_6, exiv2-debuginfo 0.27.0-2.el7_6 Red Hat Enterprise Linux ComputeNode (v. 7) exiv2 0.27.0-2.el7_6, exiv2-libs 0.27.0-2.el7_6 Red Hat Enterprise Linux ComputeNode Optional (v. 7) exiv2-doc 0.27.0-2.el7_6, exiv2-devel 0.27.0-2.el7_6, exiv2-debuginfo 0.27.0-2.el7_6 Red Hat Enterprise Linux Server (v. 7) exiv2 0.27.0-2.el7_6, exiv2-libs 0.27.0-2.el7_6 Red Hat Enterprise Linux Server Optional (v. 7) exiv2-doc 0.27.0-2.el7_6, exiv2-devel 0.27.0-2.el7_6, exiv2-debuginfo 0.27.0-2.el7_6
    +2 more products
    Red Hat Enterprise Linux Workstation (v. 7) exiv2 0.27.0-2.el7_6, exiv2-libs 0.27.0-2.el7_6 Red Hat Enterprise Linux Workstation Optional (v. 7) exiv2-doc 0.27.0-2.el7_6, exiv2-devel 0.27.0-2.el7_6, exiv2-debuginfo 0.27.0-2.el7_6
    fixed: vendor fix RHSA-2019:2101
  • Red Hat Enterprise Linux 6 exiv2, exiv2-libs Red Hat Enterprise Linux 8 exiv2, exiv2-libs
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.69% chance of exploitation in the next 30 days, higher than 77% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/Exiv2/exiv2/issues/378 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 8.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.