6.1

CVE-2016-5699: python

Modified
AliasesUBUNTU-CVE-2016-5699DEBIAN-CVE-2016-5699
Published 02-09-2016Last modified 06-08-2024

Vulnerability summary

CVE-2016-5699 is a medium (CVSS 6.1) vulnerability in python. EPSS estimates a 9.89% chance of exploitation in the next 30 days, higher than 95.5% of scored vulnerabilities. 1 public exploit is recorded.

Priority
Routine

Not severe (CVSS 6.1, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
6.1/10
010
Medium · v3.0 (NVD)
EPSS score
9.89%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 21 · Related 13
DLA-1663-1DLA-522-1MGASA-2016-0230OPENSUSE-SU-2020:0086-1OPENSUSE-SU-2024:10193-1OPENSUSE-SU-2024:10450-1

Timeline

  1. 02-09-2016
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

CRLF injection vulnerability in the HTTPConnection.putheader function in urllib2 and urllib in CPython (aka Python) before 2.7.10 and 3.x before 3.4.4 allows remote attackers to inject arbitrary HTTP headers via CRLF sequences in a URL.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

9.89%

Chance of exploitation in the next 30 days

Percentile

96%

Versus all other CVEs

30-day change

No change 0.00 pp

From 9.89% 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

1 found
  • referenceUnverified

    Exploit Reference (blog.blindspotsecurity.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Version check

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

Ubuntu2 products
  • python2.7< 2.7.6-8ubuntu0.3
  • python3.4< 3.4.3-1ubuntu1~14.04.5
Debian1 product
  • python2.7< 2.7.10~rc1-1
Python1 product
  • pythonEOL≤ 2.7.9 | 3.0 | 3.0.1 | 3.1.0 | 3.1.1 | 3.1.2 | 3.1.3 | 3.1.4 | 3.1.5 | 3.2.0 | 3.2.1 | 3.2.2 | 3.2.3 | 3.2.4 | 3.2.5 | 3.2.6 | 3.3.0 | 3.3.1 | 3.3.2 | 3.3.3 | 3.3.4 | 3.3.5 | 3.3.6 | 3.4.0 | 3.4.1 | 3.4.2 | 3.4.3

3 vendors · 4 products

References

24 links
Show all 24 references