5

CVE-2015-0291: openssl

CVSS: 5.0v2.0MediumModified
Published 19-03-2015Last modified 06-08-2024
Open JSON

Vulnerability summary

CVE-2015-0291 is a medium (CVSS 5.0) vulnerability in openssl. EPSS estimates a 6.88% chance of exploitation in the next 30 days, higher than 94% of scored vulnerabilities.

Overall risk
21/100
0100
Low · default modelHow is this calculated?
CVSS score
5.0/10
010
Medium · v2.0 (NVD)
EPSS score
6.88%
0%100%
Low · -0.86 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 19-03-2015
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

The sigalgs implementation in t1_lib.c in OpenSSL 1.0.2 before 1.0.2a allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) by using an invalid signature_algorithms extension in the ClientHello message during a renegotiation.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

6.88%

Chance of exploitation in the next 30 days

Percentile

94%

Versus all other CVEs

30-day change

-0.86 pp

From 7.75% on 21-09-2026

21-09-202621-10-2026
EPSS score
6.88%

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

No weakness data has been published for this record.

Affected systems

Openssl1 product
  • opensslEOL1.0.2 | 1.0.2:beta1 | 1.0.2:beta2 | 1.0.2:beta3

1 vendor · 1 product

References

18 links
Show all 18 references