9.8

CVE-2021-24115: botan_project botan

CVSS: 9.8v3.1CriticalModified
AliasesALPINE-CVE-2021-24115MGASA-2021-0329openSUSE-SU-2021:0765-1
Published 22-02-2021Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-24115 is a critical (CVSS 9.8) vulnerability in botan_project botan. EPSS estimates a 1.92% chance of exploitation in the next 30 days, higher than 79.7% 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
1.92%
0%100%
Low · -0.05 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 22-02-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

In Botan before 2.17.3, constant-time computations are not used for certain decoding and encoding operations (base32, base58, base64, and hex).

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

1.92%

Chance of exploitation in the next 30 days

Percentile

80%

Versus all other CVEs

30-day change

-0.05 pp

From 1.98% on 21-09-2026

21-09-202621-10-2026
EPSS score
1.92%

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

Suse2 products
  • Botan&distro=SUSE Package Hub 15 SP1< 2.10.0-bp152.4.3.1
  • Botan&distro=SUSE Package Hub 15 SP2< 2.10.0-bp152.4.6.1 | < 2.10.0-bp152.4.3.1
Ubuntu2 products
  • botanAll versions (No fix recorded)
  • botan1.10All versions (No fix recorded)
Alpine1 product
  • botan< 2.11.0-r4 | < 2.11.0-r6 | < 2.17.3-r0
Botan_project1 product
Debian1 product
  • botan< 2.17.3+dfsg-1
Mageia1 product
  • botan2< 2.9.0-2.2.mga7
Opensuse1 product
  • Botan&distro=openSUSE Leap 15.2< 2.10.0-bp152.4.3.1

7 vendors · 9 products

References

13 links
Show all 13 references