5.9

CVE-2016-6307: openssl Uncontrolled Resource Consumption

CVSS: 5.9v3.0MediumModified
Published 26-09-2016Last modified 06-08-2024
Open JSON

Vulnerability summary

CVE-2016-6307 is a medium (CVSS 5.9) Uncontrolled Resource Consumption vulnerability in openssl. EPSS estimates a 13.84% chance of exploitation in the next 30 days, higher than 96.5% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
5.9/10
010
Medium · v3.0 (NVD)
EPSS score
13.84%
0%100%
Medium · -0.33 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1
MGASA-2016-0408

Timeline

  1. 26-09-2016
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

The state-machine implementation in OpenSSL 1.1.0 before 1.1.0a allocates memory before checking for an excessive length, which might allow remote attackers to cause a denial of service (memory consumption) via crafted TLS messages, related to statem/statem.c and statem/statem_lib.c.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

13.84%

Chance of exploitation in the next 30 days

Percentile

97%

Versus all other CVEs

30-day change

-0.33 pp

From 14.17% on 21-09-2026

21-09-202621-10-2026
EPSS score
13.84%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Openssl1 product

1 vendor · 1 product

References

16 links
Show all 16 references