No exploitation reportedFix available

CVE-2025-6075

Q: Is CVE-2025-6075 actively exploited?

Active exploitation of CVE-2025-6075 has not been confirmed. Its EPSS score was 0.1% on 2026-10-24, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2025-6075?

CVE-2025-6075 has a CVSS v3 base score of 5.5 (MEDIUM severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

No exploitation reported by the sources we read.

Published2025-10-31
Fixed in3.14.1 · 3.13.11 · 3.13.10 · 3.12.13 · 3.11.15 · 3.10.20
WeaknessCWE-400

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

If the value passed to os.path.expandvars() is user-controlled a performance degradation is possible when expanding environment variables.

Timeline

dates in UTC

2025-10-3117:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-25 03:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2025-6075?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2025-6075?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV

Python

Branch	Affected	Fixed in	Source
3.14	≥ 3.14.0, < 3.14.1	3.14.1	NVD · OSV
3.13	≥ 3.13.1, < 3.13.11	3.13.11	NVD
3.13	≥ 3.13.0, < 3.13.10	3.13.10	OSV
3.12	≥ 3.12.0, < 3.12.13	3.12.13	OSV
3.11	≥ 3.11.0, < 3.11.15	3.11.15	OSV
3.10	≥ 3.10.0, < 3.10.20	3.10.20	OSV
3.9	< 3.9.25	3.9.25	OSV
3.9	< 3.9.0	3.9.0	NVD
3.15	= 3.15.0	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

python3AlmaLinux:10all versions · fixed in 3.12.13-2.el10_2and 7 other packages
python3AlmaLinux:9all versions · fixed in 3.9.25-2.el9_7and 7 other packages
python3.12AlmaLinux:9all versions · fixed in 3.12.13-2.el9_8and 6 other packages
python3.12AlmaLinux:8all versions · fixed in 3.12.13-2.el8_10and 7 other packages
python39AlmaLinux:8all versions · fixed in 3.9.25-2.module_el8.10.0+4083+53cad1fband 7 other packages
python39-attrsAlmaLinux:8all versions · fixed in 20.3.0-2.module_el8.6.0+2780+a40f65e1
python39-cffiAlmaLinux:8all versions · fixed in 1.14.3-2.module_el8.6.0+2780+a40f65e1
python39-cffiAlmaLinux:8all versions · fixed in 1.14.3-2.module_el8.6.0+3248+c431e88c

37 more package ranges on OSV.dev

Vendor advisories

RHSA-2026:58981 Red Hat Product Security2 products fixed
Red Hat Security Advisory: Red Hat Update Infrastructure 5.3 Technology Preview security update
RHSA-2026:1652 Red Hat Product Security4 products fixed
Red Hat Security Advisory: Red Hat Ceph Storage

Full record on NVD

Fix

Update Python to 3.14.1 · 3.13.11 · 3.13.10 · 3.12.13 · 3.11.15 · 3.10.20 · 3.9.25 · 3.9.0
Vendor fix Red Hat Product Security RHSA-2026:58981 · 2 productsPlease consult the RHUI Technology Preview Release Notes at https://access.redhat.com/articles/7141172 for instructions on how to use this image set.
Vendor fix Red Hat Product Security RHSA-2026:1652 · 4 productsThe container images provided by this update can be downloaded from the Red Hat container registry at registry.redhat.io using the "podman pull" command.
Workaround from the vendor Red Hat Product Security RHSA-2026:58981 · 4 productsNo mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.

Advisories and patches

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionnone2025-10-31
OpenCVESSVC decisionnone—
CNACVSS 4.01.8read 2026-10-23
NVDCVSS 3.15.5read 2026-10-23
CISA-ADPweakness (CWE)CWE-4002025-10-31
FIRST EPSSEPSS score0.1 %2026-10-24
OSVaffected packages—

Technical details

CVSS v3 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 4.0 vector: CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:L/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
Published: 2025-10-31
Last Modified: 2026-10-07
NVD status: Analyzed

Frequently asked questions

What is CVE-2025-6075?

If the value passed to os.path.expandvars() is user-controlled a performance degradation is possible when expanding environment variables.

Is CVE-2025-6075 actively exploited?

Active exploitation of CVE-2025-6075 has not been confirmed. Its EPSS score was 0.1% on 2026-10-24, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2025-6075?

CVE-2025-6075 has a CVSS v3 base score of 5.5 (MEDIUM severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

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