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CVE-2026-75421VulnerabilityPublished Updated

SUSE aria2 · Security update for aria2

Affects SUSE aria2Source GCVE Database

0
Authoritative record:CVE-2026-75421· Medium 4.0

Not known to be exploited · CVSS 4.0 Medium · fixed in Ubuntu package updates : update SUSE aria2 when convenient.

Data as of 26 Oct 2026, 12:55 UTC

CVSS 3.1 base score
4.0Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 1.37.0
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 25 Aug 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Ubuntu 26.10aria2pkg:deb/ubuntu/aria2?arch=source&distro=stonkingOther threatsAffected
  • =1.37.0+debian-4
Fixed in–
Ubuntu 26.04 LTSaria2pkg:deb/ubuntu/aria2?arch=source&distro=resoluteOther threatsAffected
  • =1.37.0+debian-3build1
  • =1.37.0+debian-4
Fixed in–
Ubuntu 24.04 LTSaria2pkg:deb/ubuntu/aria2?arch=source&distro=nobleOther threatsAffected
  • 1.36.0-2 – 1.37.0+debian-1build3
5 affected builds
Fixed in–
Ubuntu 22.04 LTSaria2pkg:deb/ubuntu/aria2?arch=source&distro=jammyOther threatsAffected
  • =1.35.0-3
  • =1.36.0-1
Fixed in–
Ubuntu 20.04 LTSaria2pkg:deb/ubuntu/aria2?arch=source&distro=focalOther threatsAffected
  • =1.34.0-4
  • =1.35.0-1
  • =1.35.0-1build1
Fixed in–
Ubuntu Pro 18.04 LTSaria2pkg:deb/ubuntu/aria2?arch=source&distro=esm-apps/bionicOther threatsAffected
  • 1.32.0-1 – 1.33.1-1ubuntu0.1~esm1
4 affected builds
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

Description

This update for aria2 fixes the following issues: Changes in aria2: - CVE-2026-75421: stack buffer underflow in IOFile::getLine() when a line begins with a NUL byte (boo#1276754) - Fix build with Nettle 4.0 [be1caa2d] (bsc#1257934)

References

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