CVE-2023-41419

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 1.3%, top 32% 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).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.8Exploit: None knownExposed: 0

A fix is available — apply it.

An issue in Gevent before version 23.9.0 allows a remote attacker to escalate privileges via a crafted script to the WSGIServer component.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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 computed
Severity98% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
69%
KEV
Not listed

Published

September 25, 2023

Last Modified

June 17, 2026

Advisory Details (3)

Auto-updated Aug 31, 2026
Patch available. Sources: github_commit.
generic Patch Available

[SECURITY] [DLA 4377-1] python-gevent security update

https://lists.debian.org/debian-lts-announce/2025/11/msg00020.html
generic

Vulnerability in gevent.pywsgi.WSGIServer · Issue #1989 · gevent/gevent · GitHub

https://github.com/gevent/gevent/issues/1989
github_commit

commit 2f53c851eaf9 (gevent/gevent)

Fix landed in gevent/gevent commit 2f53c851eaf9 — awaiting tagged release

https://github.com/gevent/gevent/commit/2f53c851eaf926767fbac62385615efd4886221c

Vendor Advisories for CVE-2023-41419(4)

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

Patch Availability(6)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatpython-gevent-0:1.2.2-5.el8_102024-11-05redhat
redhatpython-gevent-0:1.2.2-5.el8_82024-10-15redhat
redhatpython-gevent-0:1.2.2-5.el8_42024-10-15redhat
redhatpython-gevent-0:1.2.2-5.el8_22024-10-08redhat
redhatpython-gevent-0:1.2.2-5.el8_62024-10-01redhat
redhatpython-gevent-0:21.1.2-2.el9ost2023-11-21redhat

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

(5 across 5 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
python-gevent20.9.0-220.9.0-2+deb11u1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
python-gevent22.10.2-3 ... 25.9.1-2 (8 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
python-gevent—23.9.1-0.1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
python-gevent—23.9.1-0.1—
PyPI(1)
PackageVulnerable rangeFixed inDependents
gevent0.10.0 ... 0.9.0 (114 versions)23.9.0—

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 7× in last 7d / 34× 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 157 total refreshes for this CVE.

  1. 2026-08-30 19:15 UTCEPSS rescore
  2. 2026-08-30 01:20 UTCEPSS rescore
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  24. 2026-07-23 02:26 UTCEG score recompute
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Frequently asked(5)

What is CVE-2023-41419?
CVE-2023-41419 is a critical vulnerability published on September 25, 2023. An issue in Gevent before version 23.9.0 allows a remote attacker to escalate privileges via a crafted script to the WSGIServer component.
When was CVE-2023-41419 disclosed?
CVE-2023-41419 was first published in the National Vulnerability Database on September 25, 2023, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-41419 actively exploited?
CVE-2023-41419 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 30.6% of all scored CVEs.
What is the CVSS score of CVE-2023-41419?
CVE-2023-41419 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2023-41419?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-41419, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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