9.8

CVE-2014-4650: python

Modified
AliasesUBUNTU-CVE-2014-4650DEBIAN-CVE-2014-4650
Published 20-02-2020Last modified 06-08-2024

Vulnerability summary

CVE-2014-4650 is a critical (CVSS 9.8) vulnerability in python. EPSS estimates a 23.91% chance of exploitation in the next 30 days, higher than 97.8% of scored vulnerabilities. 2 public exploits are recorded.

Priority
Prioritisepublic exploit

Public exploit (exploit-database, 27-06-2014)

Source freshness unavailable

How is this decided?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
23.91%
0%100%
High · -0.79 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits2reference, exploit-database

Advisory lineage

Upstream 0 · Downstream 21 · Related 17
MGASA-2014-0285OPENSUSE-SU-2020:0086-1OPENSUSE-SU-2024:10100-1OPENSUSE-SU-2024:10536-1OPENSUSE-SU-2024:11202-1OPENSUSE-SU-2024:11283-1

Timeline

  1. 20-02-2020
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

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 metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

23.91%

Chance of exploitation in the next 30 days

Percentile

98%

Versus all other CVEs

30-day change

Decrease -0.79 pp

From 24.70% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

2 found
  • referenceUnverified

    Exploit Reference (bugs.python.org)

    Maturity: unknown

  • exploit-databasemultipleVerified

    Python CGIHTTPServer - Encoded Directory Traversal

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Redhat2 products
Ubuntu2 products
  • python2.7< 2.7.6-8ubuntu0.2
  • python3.4< 3.4.0-2ubuntu1.1
Debian1 product
  • python2.7< 2.7.8-1
Python1 product
  • python≥ 2.7.0, < 2.7.8 | ≥ 3.2.0, < 3.2.6 | ≥ 3.3.0, < 3.3.6 | ≥ 3.4.0, < 3.4.2

4 vendors · 6 products

References

8 links