During an address list folding when a separating comma ends up on a folded line and that line is to be unicode-encoded then the separator itself is also unicode-encoded. Expected behavior is that the separating comma remains a plan comma. This can result in the address header being misinterpreted by some mail servers.
CVE-2025-1795
This low-severity CVE scores 2.3 under NVD CVSS v3. EPSS exploit probability: 0.6%, top 56% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v3
- 2.3
- EG Score
- 2.3(medium)
- EG Risk
- 11(Track)EG Risk 11/100SSVC: Track
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 computedSeverity23% × 45%Exploitation1% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS
- 43.9%
- KEV
- Not listed
Published
February 28, 2025
Last Modified
April 15, 2026
References (10)
- cna@pythonhttps://github.com/python/cpython/commit/09fab93c3d857496c0bd162797fab816c311ee48
- cna@pythonhttps://github.com/python/cpython/commit/70754d21c288535e86070ca7a6e90dcb670b8593
- cna@pythonhttps://github.com/python/cpython/commit/9148b77e0af91cdacaa7fe3dfac09635c3fe9a74
- cna@pythonhttps://github.com/python/cpython/commit/a4ef689ce670684ec132204b1cd03720c8e0a03d
- cna@pythonhttps://github.com/python/cpython/commit/d4df3c55e4c5513947f907f24766b34d2ae8c090
- cna@pythonhttps://github.com/python/cpython/issues/100884
- cna@pythonhttps://github.com/python/cpython/pull/100885
- cna@pythonhttps://github.com/python/cpython/pull/119099
- cna@pythonhttps://mail.python.org/archives/list/[email protected]/thread/MB62IZMEC3UM6SGHP5LET5JX2Y7H4ZUR/
- af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/03/msg00013.html
Vendor Advisories for CVE-2025-1795(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Patch Availability(1)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | python3.11-venv (3.11.0~rc1-1~22.04.1~esm4) @ jammy | 2026-06-08 | ubuntu |
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.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(1)
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 12× in last 7d / 46× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. 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. Most recent first.
Showing the most recent 100 of 127 total refreshes for this CVE.
- 2026-07-23 14:17 UTCEPSS rescore
- 2026-07-23 02:49 UTCEG score recompute
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- 2026-06-08 16:28 UTCEG score recompute▲ 2.30
- 2026-06-08 16:28 UTCVendor advisory
- 2026-06-08 16:28 UTCGHSA enrichment
- 2026-06-08 14:16 UTCEPSS rescore
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Related CVEs(same vendor + same CWE)
Same vendor
10 shownubuntu · msrc
Same CWE
10 shownCWE-116
Frequently asked(5)
What is CVE-2025-1795?
When was CVE-2025-1795 disclosed?
Is CVE-2025-1795 actively exploited?
What is the CVSS score of CVE-2025-1795?
How do I remediate CVE-2025-1795?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2025-1795
Is Your Infrastructure Affected by CVE-2025-1795?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.