Is CVE-2020-29651 in the CISA KEV catalog?

No. CVE-2020-29651 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-29651?

CVE-2020-29651 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2020-29651?

CVE-2020-29651 has an EPSS score of 4.61% (91th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-29651?

Upgrade pypy3 on debian 11 to 7.3.5+dfsg-2+deb11u4 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2020-29651

HIGHEPSS 91th pctl

7.5

CVSS v3

NVD

Description

A denial of service via regular expression in the py.path.svnwc component of py (aka python-py) through 1.9.0 could be used by attackers to cause a compute-time denial of service attack by supplying malicious input to the blame functionality.

How to fix

Remediation Available

pypy3Debian

Fixed in:7.3.5+dfsg-2+deb11u4CVE-2020-29651

pypy-pyUbuntu

Fixed in:1.5.2-1ubuntu0.1USN-5138-1

Fixed in:1.8.1-1ubuntu0.1USN-5138-1

python-pyUbuntu

Fixed in:1.5.2-1ubuntu0.1USN-5138-1

Fixed in:1.8.1-1ubuntu0.1USN-5138-1

python3-pyUbuntu

Fixed in:1.5.2-1ubuntu0.1USN-5138-1

Fixed in:1.8.1-1ubuntu0.1USN-5138-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

4.61%probability of exploitation in 30 days

91stpercentile

High risk: more likely to be exploited than 91% of all known CVEs.

References

Patch1

github.com

Third-Party Advisory3

Other references3

Embed a live status badge for CVE-2020-29651

Markdown

[![CVE-2020-29651](https://tridentstack.com/cve/badge/CVE-2020-29651.svg)](https://tridentstack.com/cve/CVE-2020-29651)

HTML

<a href="https://tridentstack.com/cve/CVE-2020-29651"><img src="https://tridentstack.com/cve/badge/CVE-2020-29651.svg" alt="CVE-2020-29651"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-03.