CVE-2014-4650

highpriority · attend · 57EPSS 0.239 · 98 %ileexploit · functionalDEEUFRRUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · functional

Likely / severe?

23.9% (98th) EPSS

CVSS 7.5 · high

Is it mine?

15 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

The CGIHTTPServer module in Python 2.7.5 and 3.3.4 does not properly handle URLs in which URL encoding is used for path separators, which allows remote attackers to read script source code or conduct directory traversal attacks and execute unintended code via a crafted character sequence, as demonstrated by a %2f separator.

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–9.8

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v2.09.3criticalAV:N/AC:M/Au:N/C:C/I:C/A:Csecondary · FSTEC (BDU) RU

v3.19.3criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-22USprimaryCWE-22US

exploits (1)

Public proof-of-concept and weaponised exploit code.

EDB-33894Python CGIHTTPServer - Encoded Directory Traversalfunctional · exploit_db

affected products (15)

Products and version ranges known to be affected.

Open Source Pythonall versionscert_bundDEcpe:/a:python:python:-
Red Hat Enterprise Linux 6all versionscert_bundDEcpe:/o:redhat:enterprise_linux:6
Red Hat Enterprise Linux 7all versionscert_bundDEcpe:/o:redhat:enterprise_linux:7
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
SUSE openSUSEall versionscert_bundDEcpe:/o:suse:opensuse:-
n/a n/a≤ n/aenisa_euvdEU
Python Software Foundation Python2.7.0 → 2.7.8fstec_bduRU
python python2.7.0 → 2.7.8nvdUScpe:2.3:a:python:python:*:*:*:*:*:*:*:*
python python3.2.0 → 3.2.6nvdUScpe:2.3:a:python:python:*:*:*:*:*:*:*:*
python python3.3.0 → 3.3.6nvdUScpe:2.3:a:python:python:*:*:*:*:*:*:*:*
python python3.4.0 → 3.4.2nvdUScpe:2.3:a:python:python:*:*:*:*:*:*:*:*
redhat enterprise linux= 5.0nvdUScpe:2.3:o:redhat:enterprise_linux:*:*:*:*:*:*:*:*
redhat enterprise linux= 6.0nvdUScpe:2.3:o:redhat:enterprise_linux:*:*:*:*:*:*:*:*
redhat enterprise linux= 7.0nvdUScpe:2.3:o:redhat:enterprise_linux:*:*:*:*:*:*:*:*
redhat software collectionsall versionsnvdUScpe:2.3:a:redhat:software_collections:*:*:*:*:*:*:*:*

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2025-2521Python: Mehrere SchwachstellenDeutsch2015-06-04csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Python ausnutzen, um einen Denial of Service Angriff durchzuführen oder Code zur Ausführung zu bringen.
CERTFR-2026-AVI-1385Multiples vulnérabilités dans les produits VMwareFrançais2026-10-26vendor · certfrFR

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund nvd certfr NVD CVE.org MITRE

published 2020-02-20modified 2026-06-17

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+12524 more

references (13)

External citations — patches, advisories, analysis.

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