7.5

CVE-2020-11979: apache ant

Modified
AliasesMGASA-2021-0173UBUNTU-CVE-2020-11979DEBIAN-CVE-2020-11979
Published 01-10-2020Last modified 08-10-2026

Vulnerability summary

CVE-2020-11979 is a high (CVSS 7.5) vulnerability in apache ant. EPSS estimates a 7.76% chance of exploitation in the next 30 days, higher than 94.6% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 7.5 (NVD); no exploitation reported by the 5 checked sources; EPSS 8% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
7.76%
0%100%
Low · -0.26 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 5 · Related 2
OPENSUSE-SU-2024:10616-1RHSA-2021:0423RHSA-2021:0429RHSA-2021:0637SUSE-SU-2022:4022-1

Timeline

  1. 01-10-2020
    PublishedVulnerability first disclosed.
  2. 08-10-2026
    Last modifiedVulnerability information updated.

Description

As mitigation for CVE-2020-1945 Apache Ant 1.10.8 changed the permissions of temporary files it created so that only the current user was allowed to access them. Unfortunately the fixcrlf task deleted the temporary file and created a new one without said protection, effectively nullifying the effort. This would still allow an attacker to inject modified source files into the build process.

CVSS metrics

7 scores · 6 sources · 2 versions

EPSS trend

Probability

7.76%

Chance of exploitation in the next 30 days

Percentile

95%

Versus all other CVEs

30-day change

Decrease -0.26 pp

From 8.02% 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.

Chainguard166 products
  • eco-java-gradleAll versions (No fix recorded)
  • eco-java-gradle-1.11All versions (No fix recorded)
  • eco-java-gradle-1.11-defaultAll versions (No fix recorded)
  • eco-java-gradle-2.0All versions (No fix recorded)
  • eco-java-gradle-2.0-defaultAll versions (No fix recorded)
Oracle25 products
Alpine2 products
  • apache-ant< 1.10.9-r0
  • gradle< 6.8.3-r0
Apache1 product
Debian1 product
  • ant< 1.10.9-1
Fedoraproject1 product
Gradle1 product
Mageia1 product
  • ant< 1.10.9-1.mga7
Org.apache.ant1 product
  • ant< 1.10.9
Ubuntu1 product
  • antAll versions (No fix recorded)

10 vendors · 200 products · Showing 200 of 209

References

40 links
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