9.8

CVE-2021-37155: wolfssl

CVSS: 9.8v3.1CriticalModified
AliasesUBUNTU-CVE-2021-37155DEBIAN-CVE-2021-37155
Published 21-07-2021Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2021-37155 is a critical (CVSS 9.8) vulnerability in wolfssl. EPSS estimates a 1.49% chance of exploitation in the next 30 days, higher than 73.7% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
1.49%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 21-07-2021
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

wolfSSL 4.6.x through 4.7.x before 4.8.0 does not produce a failure outcome when the serial number in an OCSP request differs from the serial number in the OCSP response.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

1.49%

Chance of exploitation in the next 30 days

Percentile

74%

Versus all other CVEs

30-day change

0.00 pp

From 1.49% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.49%

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

Debian1 product
  • wolfssl< 5.0.0-1
Ubuntu1 product
  • wolfsslAll versions (No fix recorded)
Wolfssl1 product

3 vendors · 3 products

References

5 links