5.5

CVE-2021-30470: fedoraproject fedora Uncontrolled Recursion

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2021-30470DEBIAN-CVE-2021-30470
Published 26-05-2021Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-30470 is a medium (CVSS 5.5) Uncontrolled Recursion vulnerability in fedoraproject fedora. EPSS estimates a 0.69% chance of exploitation in the next 30 days, higher than 51.8% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
32/100
0100
Medium · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.69%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 2 · Related 2
SUSE-SU-2026:4311-1USN-7217-1

Timeline

  1. 26-05-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

A flaw was found in PoDoFo 0.9.7. An uncontrolled recursive call among PdfTokenizer::ReadArray(), PdfTokenizer::GetNextVariant() and PdfTokenizer::ReadDataType() functions can lead to a stack overflow.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.69%

Chance of exploitation in the next 30 days

Percentile

52%

Versus all other CVEs

30-day change

0.00 pp

From 0.69% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.69%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (bugzilla.redhat.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • libpodofo< 0.9.8+dfsg-1
Fedoraproject1 product
Podofo_project1 product
Redhat1 product
Ubuntu1 product
  • libpodofo< 0.9.6+dfsg-5ubuntu0.1~esm1 | < 0.9.7+dfsg-3ubuntu0.1~esm1

5 vendors · 5 products

References

6 links