iPXE TLS tls.c tls_new_ciphertext information exposure

Description

A vulnerability was found in iPXE. It has been declared as problematic. This vulnerability affects the function tls_new_ciphertext of the file src/net/tls.c of the component TLS. The manipulation of the argument pad_len leads to information exposure through discrepancy. The name of the patch is 186306d6199096b7a7c4b4574d4be8cdb8426729. It is recommended to apply a patch to fix this issue. VDB-214054 is the identifier assigned to this vulnerability.

Scores

EPSS (exploitation in 30 days)

0.54% · top 54% of all CVEs (6 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: no · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 2.6.

Weakness

• CWE-284 Improper Access Controls -> CWE-200 Information Disclosure -> CWE-203 Information Exposure Through Discrepancy (opens in a new tab)All about CWE-284 and its CVEs
• CWE-203 (opens in a new tab)All about CWE-203 and its CVEs

Affected products

• unspecified · iPXE

  • affected n/a

References (2)

• https://github.com/ipxe/ipxe/commit/186306d6199096b7a7c4b4574d4be8cdb8426729 (opens in a new tab)x_transferred
• https://vuldb.com/?id.214054 (opens in a new tab)x_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2022-4087](https://trackcve.app/badge/CVE-2022-4087.svg)](https://trackcve.app/cve/CVE-2022-4087)

Record last updated 15 Apr 2025, 13:12 UTC.