CVE-2025-15367

MEDIUMNVD 5.95.9
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

This medium-severity CVE scores 5.9 under NVD CVSS v3. EPSS exploit probability: 0.4% (29th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, NVD CVSS v3
5.9EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 5.9Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

The poplib module, when passed a user-controlled command, can have additional commands injected using newlines. Mitigation rejects commands containing control characters.

CVSS v3
5.9
EG Score
5.9MEDIUMmedium confidence
EG Risk
27
EG Risk 27/100

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)
Severity59% × 45%
The EG Score, 5.9 of 10.
Exploitation0.4% × 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 low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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
0.4%
EPSS %ILE
29th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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)14 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 total (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

January 20, 2026

Last Modified

June 17, 2026

Advisory Details (4)

Auto-updated Aug 8, 2026
Patch available. Sources: github_commit, github_pr.
Web page

Mailman 3 [CVE-2025-15367] POP3 command injection in user-controlled commands - Security-announce - python.org

https://mail.python.org/archives/list/[email protected]/thread/CBFBOWVGGUJFSGITQCCBZS4GEYYZ7ZNE/
GitHub pull request

gh-143923: Reject control characters in POP3 commands

Fix merged in python/cpython PR #143924 on 2026-01-20 — awaiting tagged release

https://github.com/python/cpython/pull/143924
Web page

Reject control characters in POP3 commands · Issue #143923 · python/cpython · GitHub

https://github.com/python/cpython/issues/143923
GitHub commit

commit b234a2b67539 (python/cpython)

Fix landed in python/cpython commit b234a2b67539 — awaiting tagged release

https://github.com/python/cpython/commit/b234a2b67539f787e191d2ef19a7cbdce32874e7

Vendor Advisories for CVE-2025-15367(20)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(30)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatrhaiis/vllm-spyre-rhel9:17782445462026-05-12redhat
redhatrhaiis/vllm-rocm-rhel9:17756802622026-04-17redhat
redhatrhaiis/model-opt-cuda-rhel9:17757498572026-04-17redhat
redhatrhaiis/vllm-cuda-rhel9:17756801922026-04-17redhat
redhatpython3-12-main-3.12.13-3.hum12026-04-17redhat
redhatpython3-11-main-3.11.15-4.hum12026-04-17redhat
redhatpython3-13-main-3.13.13-1.hum12026-04-10redhat
redhatdiscovery/discovery-ui-rhel9:17756759222026-04-09redhat
redhatpython3-0:3.6.8-21.el7_9.42026-04-02redhat
redhatpython3.11-0:3.11.7-1.el9_4.112026-03-31redhat
redhatpython3-14-main-3.14.3-2.hum12026-03-30redhat
redhatpython3-0:3.6.8-51.el8_8.132026-03-30redhat
redhatpython-0:2.6.6-70.el6_10.22026-03-30redhat
redhatrhceph/rhceph-8-rhel9:17740028672026-03-24redhat
redhatpython3.11-0:3.11.2-2.el9_2.102026-03-23redhat
redhatpython3.9-0:3.9.10-4.el9_0.92026-03-23redhat
redhatpython3-0:3.6.8-24.el8_2.62026-03-23redhat
redhatpython3.12-0:3.12.1-4.el9_4.112026-03-23redhat
redhatpython3-0:3.6.8-39.el8_4.92026-03-23redhat
redhatpython3.9-0:3.9.21-2.el9_6.42026-03-23redhat
redhatpython3.9-0:3.9.16-1.el9_2.122026-03-23redhat
redhatpython3.9-0:3.9.18-3.el9_4.112026-03-23redhat
redhatpython-0:2.7.5-94.el7_9.32026-03-23redhat
redhatpython3-0:3.6.8-47.el8_6.112026-03-23redhat
redhatpython3.12-0:3.12.9-2.el10_0.72026-03-23redhat
redhatpython3.11-0:3.11.2-2.el8_8.82026-03-19redhat
redhatrhui5/rhua-rhel9:17736701372026-03-18redhat
redhatpython3.12-0:3.12.9-1.el9_6.62026-03-17redhat
redhatpython3.12-0:3.12.12-3.el10_1.12026-03-17redhat
redhatpython3.11-0:3.11.13-5.el8_102026-03-12redhat

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

(14 across 4 ecosystems)
Debian:11(4)
PackageVulnerable rangeFix by version rangeDependents
jython2.7.2+repack1-3, 2.7.2+repack1-4, 2.7.2+repack1-5, 2.7.3+repack1-1
  • every version on: no fix on record
—
pypy37.3.10+dfsg-1 ... 7.3.9+dfsg-5 (53 versions)
  • every version on: no fix on record
—
python2.72.7.18-10 ... 2.7.18-9 (10 versions)
  • every version on: no fix on record
—
python3.93.9.2-1, 3.9.2-1+deb11u1, 3.9.2-1+deb11u2, 3.9.2-1+deb11u3, 3.9.2-1+deb11u4
  • every version up to 3.9.2-1+deb11u5: fixed in 3.9.2-1+deb11u5
—
Debian:14(4)
PackageVulnerable rangeFix by version rangeDependents
jython2.7.3+repack1-1
  • every version on: no fix on record
—
pypy37.3.19+dfsg-2 ... 7.3.23+dfsg-1 (11 versions)
  • every version on: no fix on record
—
python3.133.13.11-1 ... 3.13.9-1 (9 versions)
  • every version on: no fix on record
—
python3.143.14.0-1 ... 3.14.7-2 (26 versions)
  • every version on: no fix on record
—
Debian:12(3)
PackageVulnerable rangeFix by version rangeDependents
jython2.7.3+repack1-1
  • every version on: no fix on record
—
pypy37.3.11+dfsg-2 ... 7.3.23+dfsg-1 (29 versions)
  • every version on: no fix on record
—
python3.113.11.2-6 ... 3.11.9-1 (28 versions)
  • every version on: no fix on record
—
Debian:13(3)
PackageVulnerable rangeFix by version rangeDependents
jython2.7.3+repack1-1
  • every version on: no fix on record
—
pypy37.3.19+dfsg-2 ... 7.3.23+dfsg-1 (11 versions)
  • every version on: no fix on record
—
python3.133.13.11-1 ... 3.13.9-1 (13 versions)
  • every version on: no fix on record
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(15)

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 / 30× 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 222 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 125 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-15 16:30 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  2. 2026-10-14 16:31 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  3. 2026-10-13 16:31 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  4. 2026-10-12 17:22 UTCEG score recompute
  5. 2026-10-12 16:32 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  6. 2026-10-11 20:53 UTCEG score recompute
  7. 2026-10-11 19:03 UTCEG score recompute
  8. 2026-10-11 15:43 UTCEG score recompute
  9. 2026-10-11 13:46 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  10. 2026-10-10 19:58 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  11. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  12. 2026-10-08 20:25 UTCOSV refresh
  13. 2026-10-08 17:08 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  14. 2026-10-07 23:46 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  15. 2026-10-06 15:16 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  16. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  17. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  18. 2026-10-03 14:24 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  19. 2026-10-01 19:48 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  20. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  21. 2026-09-28 13:50 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  22. 2026-09-26 15:57 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  23. 2026-09-24 14:02 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  24. 2026-09-23 13:46 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  25. 2026-09-22 14:47 UTCEPSS rescoreEPSS 0.4% · 30th percentile
Show 72 more
  1. 2026-09-20 20:14 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  2. 2026-09-19 02:36 UTCOSV refresh
  3. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  4. 2026-09-16 14:06 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  5. 2026-09-16 05:13 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  6. 2026-09-15 03:08 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  7. 2026-09-13 16:45 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  8. 2026-09-12 14:59 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  9. 2026-09-11 09:35 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  10. 2026-09-10 09:33 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  11. 2026-09-08 21:59 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  12. 2026-09-07 16:00 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  13. 2026-09-06 13:46 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  14. 2026-09-04 13:59 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  15. 2026-09-04 05:05 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  16. 2026-09-02 14:10 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  17. 2026-09-01 13:52 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  18. 2026-09-01 04:38 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  19. 2026-08-31 06:19 UTCOSV refresh
  20. 2026-08-30 19:16 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  21. 2026-08-30 01:21 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  22. 2026-08-28 21:40 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  23. 2026-08-27 14:24 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  24. 2026-08-26 14:45 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  25. 2026-08-25 13:47 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  26. 2026-08-24 14:15 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  27. 2026-08-23 00:18 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  28. 2026-08-21 23:48 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  29. 2026-08-20 22:54 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  30. 2026-08-19 17:02 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  31. 2026-08-18 13:47 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  32. 2026-08-17 13:46 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  33. 2026-08-16 14:55 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  34. 2026-08-16 02:13 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  35. 2026-08-15 01:29 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  36. 2026-08-14 13:25 UTCEG score recompute
  37. 2026-08-14 13:25 UTCVendor advisory
  38. 2026-08-14 13:25 UTCGHSA enrichmentGHSA-g82h-mgfp-jx8g
  39. 2026-08-13 21:59 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  40. 2026-08-12 13:49 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  41. 2026-08-11 13:41 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  42. 2026-08-10 23:59 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  43. 2026-08-09 19:07 UTCEG score recompute
  44. 2026-08-09 19:07 UTCVendor advisory
  45. 2026-08-09 19:07 UTCGHSA enrichmentGHSA-g82h-mgfp-jx8g
  46. 2026-08-09 13:45 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  47. 2026-08-08 00:09 UTCEG score recompute
  48. 2026-08-08 00:09 UTCVendor advisory
  49. 2026-08-08 00:09 UTCGHSA enrichmentGHSA-g82h-mgfp-jx8g
  50. 2026-08-07 16:26 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  51. 2026-08-06 13:45 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  52. 2026-08-06 05:24 UTCEG score recompute
  53. 2026-08-06 05:24 UTCVendor advisory
  54. 2026-08-06 05:24 UTCGHSA enrichmentGHSA-g82h-mgfp-jx8g
  55. 2026-08-05 19:16 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  56. 2026-08-04 15:09 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  57. 2026-08-04 10:37 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  58. 2026-08-03 10:35 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  59. 2026-08-02 22:44 UTCEG score recompute
  60. 2026-08-02 22:44 UTCVendor advisory
  61. 2026-08-02 22:44 UTCGHSA enrichmentGHSA-g82h-mgfp-jx8g
  62. 2026-08-02 02:25 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  63. 2026-08-01 04:14 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  64. 2026-07-31 21:42 UTCOSV refresh
  65. 2026-07-30 16:26 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  66. 2026-07-30 01:29 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  67. 2026-07-28 15:35 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  68. 2026-07-27 14:12 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  69. 2026-07-26 14:53 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  70. 2026-07-25 14:17 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  71. 2026-07-24 14:16 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  72. 2026-07-23 14:17 UTCEPSS rescoreEPSS 0.3% · 23rd percentile

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2025-15367?
CVE-2025-15367 is a medium-severity vulnerability; its CVE record was published on January 20, 2026. The poplib module, when passed a user-controlled command, can have additional commands injected using newlines. Mitigation rejects commands containing control characters.
When was the CVE record for CVE-2025-15367 published?
The CVE record for CVE-2025-15367 was published on January 20, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of June 17, 2026; the record at its source may have been updated since.
Is CVE-2025-15367 actively exploited?
CVE-2025-15367 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (29th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2025-15367?
CVE-2025-15367 has a CVSS v3 base score of 5.9 (NVD).
How do I remediate CVE-2025-15367?
A fix for CVE-2025-15367 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2025-15367 are linked in the Vendor Advisories panel on this page.

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