7.5

CVE-2021-41771: debian debian_linux

Modified
AliasesUBUNTU-CVE-2021-41771DEBIAN-CVE-2021-41771GO-2021-0263
Published 08-11-2021Last modified 04-08-2024

Vulnerability summary

CVE-2021-41771 is a high (CVSS 7.5) vulnerability in debian debian_linux. EPSS estimates a 4.70% chance of exploitation in the next 30 days, higher than 91.8% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 7.5 (NVD); no exploitation reported by the 5 checked sources; EPSS 5% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
4.70%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 13 · Related 7
DLA-2891-1DLA-2892-1DLA-3395-1MGASA-2021-0537OPENSUSE-SU-2021:1539-1OPENSUSE-SU-2021:3833-1

Timeline

  1. 08-11-2021
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

ImportedSymbols in debug/macho (for Open or OpenFat) in Go before 1.16.10 and 1.17.x before 1.17.3 Accesses a Memory Location After the End of a Buffer, aka an out-of-bounds slice situation.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

4.70%

Chance of exploitation in the next 30 days

Percentile

92%

Versus all other CVEs

30-day change

No change 0.00 pp

From 4.70% 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

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

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

Ubuntu3 products
  • golang-1.16All versions (No fix recorded)
  • golang-1.17All versions (No fix recorded)
  • golang-1.8All versions (No fix recorded)
Debian2 products
Alpine1 product
  • go≥ 1.17.0, < 1.16.10-r0 | ≥ 1.17.0, < 1.17.3-r0
Fedoraproject1 product
Go1 product
  • stdlib≥ 1.17.0-0, < 1.17.3
Golang1 product
  • go< 1.16.10 | ≥ 1.17.0, < 1.17.3

6 vendors · 9 products

References

21 links
Show all 21 references