CVE-2018-19210

6.5 MEDIUM 4% exploit odds No fix listed

What it is

In LibTIFF 4.0.9, there is a NULL pointer dereference in the TIFFWriteDirectorySec function in tif_dirwrite.c that will lead to a denial of service attack, as demonstrated by tiffset.

At a glance

Exploitability: Can be exploited over the network without logging in, but needs a user to act. High risk of service disruption.
Exploit odds: 3.6% chance of exploitation in the next 30 days (EPSS).
Fix: No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

2018-11-12 19:29 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 01:48 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 3.6% in the next 30 days (EPSS).
Severity: 6.5 MEDIUM (CVSS).
Fix: none linked yet, which raises it.

Details

Published: 2018-11-12 19:29 UTC
Last modified: 2026-06-17 01:48 UTC
Exploit probability: 3.6% · EPSS, next 30 days
Weakness: CWE-476 · NULL pointer dereference
Record status: Modified

Affected

Libtiff 4.0.9
Debian Linux 8.0
Canonical Ubuntu Linux 14.04
Canonical Ubuntu Linux 16.04
Canonical Ubuntu Linux 18.04
Canonical Ubuntu Linux 18.10

Attack profile CVSS 3.0 · 6.5

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Required
Scope: Unchanged
Confidentiality: None
Integrity: None
Availability: High

Raw vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2018-19210.md and follow it. Check whether this project is affected by CVE-2018-19210. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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References

NVD record · CVE.org record