What is CVE-2021-30472?

CVE-2021-30472 is a high-severity vulnerability in Podofo Project, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.8/10. Published 2021-05-26.

How severe is CVE-2021-30472?

High severity. CVSS v3 base score is 7.8 out of 10.

Buffer overflow in Podofo Project

CVE-2021-30472

A flaw was found in PoDoFo 0.9.7. A stack-based buffer overflow in PdfEncryptMD5Base::ComputeOwnerKey function in PdfEncrypt.cpp is possible because of a improper check of the keyLength value.

Vulnerability class: Buffer Overflow

Published 2021-05-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.008 (53.6th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 53.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Podofo Project — versions 0.9.7
Podofo — versions PoDoFo 0.9.7

Weakness classification (CWE)

References

bugzilla.redhat.com/show_bug.cgi (Exploit, Patch, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2021-30472?: CVE-2021-30472 is a high-severity vulnerability in Podofo Project, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.8/10. Published 2021-05-26.
How severe is CVE-2021-30472?: High severity. CVSS v3 base score is 7.8 out of 10.