What is CVE-2018-20797?

CVE-2018-20797 is a medium-severity vulnerability in Podofo Project, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.5/10. Published 2019-02-27.

How severe is CVE-2018-20797?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2018-20797 known to be exploited?

6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Podofo Project

CVE-2018-20797

An issue was discovered in PoDoFo 0.9.6. There is an attempted excessive memory allocation in PoDoFo::podofo_calloc in base/PdfMemoryManagement.cpp when called from PoDoFo::PdfPredictorDecoder::PdfPredictorDecoder in base/PdfFiltersPrivate.cpp.

Vulnerability class: Buffer Overflow

Published 2019-02-27 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.014 (70.5th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 71st percentile — 70.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000

Affected products

Podofo Project — versions 0.9.6

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

Public proof-of-concept exploits

References

sourceforge.net/p/podofo/tickets/34/ (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-20797?: CVE-2018-20797 is a medium-severity vulnerability in Podofo Project, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.5/10. Published 2019-02-27.
How severe is CVE-2018-20797?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2018-20797 known to be exploited?: 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.