In ksh version 20120801, a flaw was found in the way it evaluates certain environment variables. An attacker could use this flaw to…

Description

In ksh version 20120801, a flaw was found in the way it evaluates certain environment variables. An attacker could use this flaw to override or bypass environment restrictions to execute shell commands. Services and applications that allow remote unauthenticated attackers to provide one of those environment variables could allow them to exploit this issue remotely.

Scores

EPSS (exploitation in 30 days)

1.4% · top 28% of all CVEs (6 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.4.

Weakness

• CWE-77 (opens in a new tab)All about CWE-77 and its CVEs

Affected products

• KornShell · ksh

  • affected 20120801

References (5)

• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14868 (opens in a new tab)x_refsource_CONFIRMx_transferred
• https://github.com/att/ast/commit/c7de8b641266bac7c77942239ac659edfee9ecd2 (opens in a new tab)x_refsource_MISCx_transferred
• https://support.apple.com/kb/HT211170 (opens in a new tab)x_refsource_CONFIRMx_transferred
• 20200529 APPLE-SA-2020-05-26-3 macOS Catalina 10.15.5, Security Update 2020-003 Mojave, Security Update 2020-003 High Sierra (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
• [debian-lts-announce] 20200720 [SECURITY] [DLA 2284-1] ksh security update (opens in a new tab)mailing-listx_refsource_MLISTx_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-2019-14868](https://trackcve.app/badge/CVE-2019-14868.svg)](https://trackcve.app/cve/CVE-2019-14868)

Record last updated 5 Aug 2024, 00:26 UTC.