# CVE-2023-30086: Memory corruption in n/a

> A local attacker can cause a denial of service via a buffer overflow in the tiffcp function of the Libtiff library.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 9 May 2023
- **Updated:** 9 Jul 2026
- **Also known as:** AZL-43927, AZL-44253, BELL-CVE-2023-30086, DEBIAN-CVE-2023-30086, GHSA-9489-j7g7-5xg4, UBUNTU-CVE-2023-30086

## What is CVE-2023-30086?

CVE-2023-30086 is a medium-severity memory corruption vulnerability in Libtiff Libtiff, published on 9 May 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Buffer Overflow vulnerability found in Libtiff V.4.0.7 allows a local attacker to cause a denial of service via the tiffcp function in tiffcp.c.

Weakness: CWE-787 (Out-of-bounds Write)

## Which versions are affected by CVE-2023-30086?

It affects 1 product.


Products: Libtiff Libtiff.

## How do I fix CVE-2023-30086?

Upgrade to a fixed version.

## Is CVE-2023-30086 being exploited?

There is no known exploitation of CVE-2023-30086 in the wild and no public exploit code.

## Other vulnerabilities in Libtiff Libtiff

- [CVE-2004-1308](https://insights.sbomify.com/CVE-2004-1308/): Integer overflow in n/a (critical 10.0)
- [CVE-2004-0929](https://insights.sbomify.com/CVE-2004-0929/): Memory corruption in n/a (critical 10.0)
- [CVE-2025-61144](https://insights.sbomify.com/CVE-2025-61144/): Memory corruption in n/a (critical 9.8)
- [CVE-2016-9533](https://insights.sbomify.com/CVE-2016-9533/): Memory corruption in n/a (critical 9.8)
- [CVE-2016-9534](https://insights.sbomify.com/CVE-2016-9534/): Memory corruption in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-30086 and fix it if it is affected.

What it is: CVE-2023-30086 is a medium-severity memory corruption vulnerability in Libtiff Libtiff, published on 9 May 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-30086 in the wild and no public exploit code.

Affected product: Libtiff Libtiff. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2023-30086/ (Markdown: https://insights.sbomify.com/CVE-2023-30086/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-30086
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-30086
- OSV: https://osv.dev/vulnerability/CVE-2023-30086

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-30086/
Summaries are generated and may contain mistakes; the official description above is the record.