CVE-2026-5713

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.13% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 3.2% of scored records. A rank, not a probability.

NVD base score

5.3 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Awaiting Analysis. NVD last modified this record on 2026-07-31.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-04-14 15:11Z4 MO AGO

Last updated

2026-07-31 13:56Z1 MO AGO

Reserved

2026-04-06

Assigning CNA

PSF

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS vector

CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Weaknesses

• CWE-121Stack-based Buffer OverflowVariant
• CWE-125Out-of-bounds ReadBase
• CWE-822Untrusted Pointer DereferenceBase

Data version

5.2

Document digest

3d386214b4553b0f80ea2d4f3ef17d4b2d5f7b9111632e3ab325fd95c1a6829c

• github.comhttps://github.com/python/cpython/pull/148187patch
• github.comhttps://github.com/python/cpython/issues/148178issue-tracking
• mail.python.orghttps://mail.python.org/archives/list/security-announce@python.org/thread/OG4RHARYSNIE22GGOMVMCRH76L5HKPLM/vendor-advisory
• github.comhttps://github.com/python/cpython/commit/289fd2c97a7e5aecb8b69f94f5e838ccfeee7e67patch
• github.comhttps://github.com/python/cpython/commit/316f6265b7f9ca4ffed5346b747475ef1943f35dpatch
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2026/04/15/6