CVE-2026-21620

LOW EPSS 36.6%
Published Feb 20, 20264mo ago · Modified Jun 17, 20262w ago
2.3 CVSS 4.0
Low
Find Similar
Published Feb 20, 2026 4mo ago
Last Modified Jun 17, 2026 2w ago

Description

Relative Path Traversal, Improper Isolation or Compartmentalization vulnerability in erlang otp erlang/otp (tftp_file modules), erlang otp inets (tftp_file modules), erlang otp tftp (tftp_file modules) allows Relative Path Traversal. This vulnerability is associated with program files lib/tftp/src/tftp_file.erl, src/tftp_file.erl. This issue affects otp: from 17.0, from 07b8f441ca711f9812fad9e9115bab3c3aa92f79; otp: from 5.10 before 7.0; otp: from 1.0.

CVSS Details

Base Score
2.3
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
36.6% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-23

References 8

  • cna.erlef.org https://cna.erlef.org/cves/CVE-2026-21620.html
  • github.com https://github.com/erlang/otp/commit/3970738f687325138eb75f798054fa8960ac354e
  • github.com https://github.com/erlang/otp/commit/655fb95725ba2fb811740b57e106873833824344
  • github.com https://github.com/erlang/otp/commit/696fdec922661d4a3cc528fc34bc24fae8d4ad8a
  • github.com https://github.com/erlang/otp/pull/10706
  • github.com https://github.com/erlang/otp/security/advisories/GHSA-hmrc-prh3-rpvp
  • osv.dev https://osv.dev/vulnerability/EEF-CVE-2026-21620
  • erlang.org https://www.erlang.org/doc/system/versions.html#order-of-versions

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.