If the value passed to os.path.expandvars() is user-controlled a performance degradation is possible when expanding environment variables.
CVE-2025-6075
“—” beside the score: it is equal to NVD's CVSS score.
This medium-severity CVE scores 5.5 under NVD CVSS v3. EPSS exploit probability: 0.1% (3rd percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v3
- 5.5
- EG Score
- 5.5MEDIUMmedium confidence
- EG Risk
- 25EG Risk 25/100
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computed (value × EchelonGraph’s weight)Severity55% × 45%The EG Score, 5.5 of 10.Exploitation0.1% × 40%FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.Automatability0% × 15%CISA's SSVC Automatable value: no (Vulnrichment).SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.Action: A fix is available. Apply it within your standard update timelines. - EPSS PROB
- 0.1%
- EPSS %ILE
- 3rd
- KEV
- Not listed
SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.
A fix is available. Apply it within your standard update timelines.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table
BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.
In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it
Published
October 31, 2025
Last Modified
October 7, 2026
Advisory Details (9)
Auto-updated Jul 30, 2026commit 5dceb9348617 (python/cpython)
Fix landed in python/cpython commit 5dceb9348617 — awaiting tagged release
https://github.com/python/cpython/commit/5dceb93486176e6b4a6d9754491005113eb23427commit f029e8db626d (python/cpython)
Fix landed in python/cpython commit f029e8db626d — awaiting tagged release
https://github.com/python/cpython/commit/f029e8db626ddc6e3a3beea4eff511a71aaceb5ccommit c8a5f3435c34 (python/cpython)
Fix landed in python/cpython commit c8a5f3435c34 — awaiting tagged release
https://github.com/python/cpython/commit/c8a5f3435c342964e0a432cc9fb448b7dbecd1bacommit 9ab89c026aa9 (python/cpython)
Fix landed in python/cpython commit 9ab89c026aa9 — awaiting tagged release
https://github.com/python/cpython/commit/9ab89c026aa9611c4b0b67c288b8303a480fe742commit 892747b4cf0f (python/cpython)
Fix landed in python/cpython commit 892747b4cf0f — awaiting tagged release
https://github.com/python/cpython/commit/892747b4cf0f95ba8beb51c0d0658bfaa381ebcacommit 631ba3407e33 (python/cpython)
Fix landed in python/cpython commit 631ba3407e33 — awaiting tagged release
https://github.com/python/cpython/commit/631ba3407e3348ccd56ce5160c4fb2c5dc5f4d84commit 2e6150adccaa (python/cpython)
Fix landed in python/cpython commit 2e6150adccaa — awaiting tagged release
https://github.com/python/cpython/commit/2e6150adccaaf5bd95d4c19dfd04a36e0b325d8cMailman 3 [CVE-2025-6075] Quadratic complexity in os.path.expandvars() with user-controlled template - Security-announce - python.org
https://mail.python.org/archives/list/[email protected]/thread/IUP5QJ6D4KK6ULHOMPC7DPNKRYQTQNLA/Potential Quadratic Complexity Vulnerabilities in `path` Modules · Issue #136065 · python/cpython · GitHub
https://github.com/python/cpython/issues/136065Vendor Advisories for CVE-2025-6075(17)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2026:76945Red Hat Product SecurityHigh
Red Hat Security Advisory: python3.9 security update
- RHSA-2026:74087Red Hat Product SecurityHigh
Red Hat Security Advisory: python3.9 security update
- RHSA-2026:58981Red Hat Product SecurityCritical
Red Hat Security Advisory: Red Hat Update Infrastructure 5.3 Technology Preview security update
- RHSA-2026:21275Red Hat Product SecurityCritical
Red Hat Security Advisory: Red Hat Update Infrastructure 5.1 security update
- RHSA-2026:19177Red Hat Product SecurityHigh
Red Hat Security Advisory: python3.12 security update
- RHSA-2026:19064Red Hat Product SecurityHigh
Red Hat Security Advisory: python3.12 security update
- RHSA-2026:10950Red Hat Product SecurityHigh
Red Hat Security Advisory: python3.12 security update
- RHSA-2026:8824Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
- +9 more
Patch Availability(19)
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(9 across 4 ecosystems)
Debian:14(3)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| pypy3 | 7.3.19+dfsg-2, 7.3.20+dfsg-1, 7.3.20+dfsg-2, 7.3.20+dfsg-3, 7.3.20+dfsg-4 |
| — |
| python3.13 | 3.13.5-2, 3.13.6-1, 3.13.7-1, 3.13.8-1, 3.13.9-1 |
| — |
| python3.14 | 3.14.0-1 ... 3.14.0~rc3-1 (13 versions) |
| — |
Debian:11(2)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| pypy3 | 7.3.10+dfsg-1 ... 7.3.9+dfsg-5 (53 versions) |
| — |
| python3.9 | 3.9.2-1, 3.9.2-1+deb11u1, 3.9.2-1+deb11u2, 3.9.2-1+deb11u3 |
| — |
Debian:12(2)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| pypy3 | 7.3.11+dfsg-2 ... 8.0.0+dfsg-1 (31 versions) |
| — |
| python3.11 | 3.11.2-6 ... 3.11.2-6+deb12u6 (7 versions) |
| — |
Debian:13(2)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| pypy3 | 7.3.19+dfsg-2 ... 8.0.0+dfsg-1 (13 versions) |
| — |
| python3.13 | 3.13.5-2 |
| — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(3)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
Data Freshness Timeline
(refreshed 11× in last 7d / 36× in last 30d)
Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.
Showing the most recent 97 of 186 refreshes on record for this CVE.
A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 3 repeat rows among the latest 100 are merged into the row they repeat. The 89 oldest rows on record are not shown and were not checked, so the counts can still include repeats.
- 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-10-14 16:31 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-10-12 16:52 UTCEG score recompute
- 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-10-11 20:27 UTCEG score recompute
- 2026-10-11 18:38 UTCEG score recompute
- 2026-10-11 15:13 UTCEG score recompute
- 2026-10-11 13:47 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-10-07 21:43 UTCEG score recompute
- 2026-10-07 21:43 UTCVendor advisory
- 2026-10-07 21:43 UTCGHSA enrichmentGHSA-vc2m-m665-8xm2 · GitHub severity LOW
- 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
- 2026-10-01 00:01 UTCEG score recompute
- 2026-10-01 00:01 UTCVendor advisory
- 2026-10-01 00:01 UTCGHSA enrichmentGHSA-vc2m-m665-8xm2 · GitHub severity LOW
- 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
Show 72 moreShow fewer
- 2026-09-29 15:20 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
- 2026-09-28 13:50 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
- 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
- 2026-09-24 14:02 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
- 2026-09-23 13:47 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-09-20 19:44 UTCOSV refresh
- 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-09-17 19:30 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-09-16 14:07 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-09-16 05:14 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-09-15 03:10 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-09-13 16:46 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-09-12 15:00 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-09-11 09:36 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-09-07 16:00 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-09-01 19:35 UTCOSV refresh
- 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-08-30 01:21 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-08-28 21:40 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-08-27 14:24 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-08-26 14:45 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-08-25 13:48 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-08-24 14:16 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-08-23 00:18 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-08-21 23:48 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-08-17 13:46 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-08-16 14:55 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-08-15 21:07 UTCOSV refresh
- 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-08-12 13:50 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-08-11 13:42 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-08-10 23:59 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-08-08 16:36 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-08-07 16:27 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-08-06 13:46 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-08-04 10:37 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-08-03 10:35 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-08-02 02:26 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-08-01 04:15 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-07-31 14:25 UTCVendor advisory
- 2026-07-31 14:25 UTCGHSA enrichmentGHSA-vc2m-m665-8xm2 · GitHub severity LOW
- 2026-07-31 14:09 UTCVendor advisory
- 2026-07-31 14:09 UTCGHSA enrichmentGHSA-vc2m-m665-8xm2 · GitHub severity LOW
- 2026-07-30 23:20 UTCVendor advisory
- 2026-07-30 23:20 UTCGHSA enrichmentGHSA-vc2m-m665-8xm2 · GitHub severity LOW
- 2026-07-30 22:21 UTCEG score recompute
- 2026-07-30 22:21 UTCVendor advisory
- 2026-07-30 22:21 UTCGHSA enrichmentGHSA-vc2m-m665-8xm2 · GitHub severity LOW
- 2026-07-30 16:27 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-07-30 01:30 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-07-27 14:13 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-07-26 14:54 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-07-24 14:17 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-07-23 16:11 UTCOSV refresh
- 2026-07-23 14:18 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-07-23 03:00 UTCEG score recompute
- 2026-07-22 14:08 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-07-21 15:24 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
- 2026-07-20 17:08 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
Related CVEs(same product + same vendor + same CWE)
Same product
10 shownDebian:14:python3.14
Same vendor
10 shownredhat:RHSA-2025:23342 · redhat:RHSA-2026:10950 · redhat:RHSA-2026:0414
Frequently asked(5)
What is CVE-2025-6075?
When was the CVE record for CVE-2025-6075 published?
Is CVE-2025-6075 actively exploited?
What is the CVSS score of CVE-2025-6075?
How do I remediate CVE-2025-6075?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2025-6075
Is Your Infrastructure Affected by CVE-2025-6075?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.