Skip to main content
No exploitation reportedFix available

CVE-2020-18771

No exploitation reported by the sources we read.

  • Published2021-08-23
  • WeaknessCWE-125

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Exiv2 0.27.99.0 has a global buffer over-read in Exiv2::Internal::Nikon1MakerNote::print0x0088 in nikonmn_int.cpp which can result in an information leak.

Timeline

dates in UTC
  1. 2021-08-2322:15CVE publishedNVD

Versions per branch

NVD
Exiv2
BranchAffectedFixed in
0.27= 0.27.99.0no fix published
Debian debian linux
BranchAffectedFixed in
10.0= 10.0no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • exiv2Ubuntu:Pro:18.04:LTSall versions · fixed in 0.25-3.1ubuntu0.18.04.11+esm1
  • exiv2Ubuntu:Pro:16.04:LTSall versions · fixed in 0.25-2.1ubuntu16.04.7+esm5
  • exiv2TuxCare:Ubuntu:18.04all versions · fixed in 0.25-3.1ubuntu0.18.04.11+tuxcare.els2and 3 other packages
  • exiv2Debian:14all versions · fixed in 0.27.2-6
  • exiv2Debian:13all versions · fixed in 0.27.2-6
  • exiv2Debian:12all versions · fixed in 0.27.2-6
  • exiv2Debian:10all versions · fixed in 0.25-4+deb10u4

Vendor advisories

  • CVE-2020-18771 Red Hat Product Security23 known affected

    exiv2: buffer overflow in Exiv2::Internal::Nikon1MakerNote::print0x0088 in nikonmn_int.cpp

    exiv2 as a component of Red Hat Enterprise Linux 6 · exiv2-devel as a component of Red Hat Enterprise Linux 6 · exiv2-libs as a component of Red Hat Enterprise Linux 6 · +20 more

Full record on NVD

Fix

  1. No fix available, says the vendor Red Hat Product Security CVE-2020-18771 · 9 productsFix deferred
  2. No fix planned, says the vendor Red Hat Product Security CVE-2020-18771 · 12 productsOut of support scope
  3. No fix planned, says the vendor Red Hat Product Security CVE-2020-18771 · 2 productsWill not fix

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
Published
2021-08-23
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-q7h8-cc9p-3543

Frequently asked questions

What is CVE-2020-18771?

Exiv2 0.27.99.0 has a global buffer over-read in Exiv2::Internal::Nikon1MakerNote::print0x0088 in nikonmn_int.cpp which can result in an information leak.

Is CVE-2020-18771 actively exploited?

Active exploitation of CVE-2020-18771 has not been confirmed. Its EPSS score was 1.8% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-18771?

CVE-2020-18771 has a CVSS v3 base score of 8.1 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H.

Running exiv2? Hear about its next vulnerability

Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

Get alerts for this productCISA KEV additions, November 2026Search CVEs

No credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database

Sources for this record