less through 653 allows OS command execution via a newline character in the name of a file, because quoting is mishandled in filename.c. Exploitation typically requires use with attacker-controlled file names, such as the files extracted from an untrusted archive. Exploitation also requires the LESSOPEN environment variable, but this is set by default in many common cases.
CVE-2024-32487
Score 8.6 from GitHub Security Advisory (severity: HIGH) published 2024-04-13. NVD baseline CVSS 8.6; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 8.6
- EG Score
- 8.6(medium)
- EG Risk
- 54(Track)EG Risk 54/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity86% × 45%Exploitation1% × 40%Automatability100% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 1%
- EPSS %ILE
- 49%
- KEV
- Not listed
Published
April 13, 2024
Last Modified
June 17, 2025
Advisory Details (6)
Auto-updated Sep 1, 2026[SECURITY] [DLA 3823-1] less security update
https://lists.debian.org/debian-lts-announce/2024/05/msg00018.htmlcommit 007521ac3c95 (gwsw/less)
Fix landed in gwsw/less commit 007521ac3c95 — awaiting tagged release
https://github.com/gwsw/less/commit/007521ac3c95bc76e3d59c6dbfe75d06c8075c33oss-security - Re: less(1) with LESSOPEN mishandles \n in paths
http://www.openwall.com/lists/oss-security/2024/04/15/1oss-security - Re: less(1) with LESSOPEN mishandles \n in paths
https://www.openwall.com/lists/oss-security/2024/04/13/2oss-security - less(1) with LESSOPEN mishandles \n in paths
https://www.openwall.com/lists/oss-security/2024/04/12/5Vendor Advisories for CVE-2024-32487(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Patch Availability(10)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | less (551-1ubuntu0.3) @ focal | 2026-05-24 | ubuntu |
| redhat | less-0:590-3.el9_2 | 2024-07-15 | redhat |
| redhat | less-0:590-2.el9_0 | 2024-07-15 | redhat |
| redhat | less-0:530-3.el8_6 | 2024-07-09 | redhat |
| redhat | less-0:530-2.el8_4 | 2024-07-09 | redhat |
| redhat | less-0:530-2.el8_2 | 2024-07-08 | redhat |
| redhat | less-0:530-3.el8_8 | 2024-07-08 | redhat |
| redhat | less-0:530-3.el8_10 | 2024-07-02 | redhat |
| redhat | less-0:458-10.el7_9 | 2024-06-06 | redhat |
| redhat | less-0:590-4.el9_4 | 2024-05-30 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(5 across 5 ecosystems)
Debian:10(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| less | 487-0.1 | 487-0.1+deb10u1 | — |
Debian:11(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| less | 551-2, 551-2+deb11u1 | 551-2+deb11u2 | — |
Debian:12(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| less | 590-2, 590-2+hurd.1, 590-2.1~deb12u1 | 590-2.1~deb12u2 | — |
Debian:13(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| less | — | 590-2.1 | — |
Debian:14(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| less | — | 590-2.1 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(10)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
- Red HatRHSA-2024:3513IMPORTANT2024-04-13
RHSA-2024:3513 — Important
- Red HatRHSA-2024:3669IMPORTANT2024-04-13
RHSA-2024:3669 — Important
- Red HatRHSA-2024:4256IMPORTANT2024-04-13
RHSA-2024:4256 — Important
- Red HatRHSA-2024:4366IMPORTANT2024-04-13
RHSA-2024:4366 — Important
- Red HatRHSA-2024:4369IMPORTANT2024-04-13
RHSA-2024:4369 — Important
- Red HatRHSA-2024:4416IMPORTANT2024-04-13
RHSA-2024:4416 — Important
- Red HatRHSA-2024:4418IMPORTANT2024-04-13
RHSA-2024:4418 — Important
- Red HatRHSA-2024:4528IMPORTANT2024-04-13
RHSA-2024:4528 — Important
- Red HatRHSA-2024:4529IMPORTANT2024-04-13
RHSA-2024:4529 — Important
- UbuntuUSN-6756-1MEDIUM
less vulnerability
Data Freshness Timeline
(refreshed 7× in last 7d / 29× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 173 total refreshes for this CVE.
- 2026-09-18 19:26 UTCEPSS rescore
- 2026-09-16 14:06 UTCEPSS rescore
- 2026-09-16 14:06 UTCEPSS rescore
- 2026-09-15 03:08 UTCEPSS rescore
- 2026-09-15 03:08 UTCEPSS rescore
- 2026-09-13 16:45 UTCEPSS rescore
- 2026-09-12 14:59 UTCEPSS rescore
- 2026-09-11 14:51 UTCEPSS rescore
- 2026-09-11 09:35 UTCEPSS rescore
- 2026-09-08 21:58 UTCEPSS rescore
- 2026-09-07 15:59 UTCEPSS rescore
- 2026-09-06 13:46 UTCEPSS rescore
- 2026-09-06 13:46 UTCEPSS rescore
- 2026-09-05 15:26 UTCEPSS rescore
- 2026-09-04 13:58 UTCEPSS rescore
- 2026-09-04 05:05 UTCEPSS rescore
- 2026-09-03 00:29 UTCOSV refresh
- 2026-09-02 14:10 UTCEPSS rescore
- 2026-09-01 13:52 UTCEPSS rescore
- 2026-08-30 19:15 UTCEPSS rescore
- 2026-08-30 01:20 UTCEPSS rescore
- 2026-08-28 21:39 UTCEPSS rescore
- 2026-08-27 14:23 UTCEPSS rescore
- 2026-08-26 14:44 UTCEPSS rescore
- 2026-08-25 13:47 UTCEPSS rescore
Show 75 moreShow fewer
- 2026-08-24 14:15 UTCEPSS rescore
- 2026-08-23 00:17 UTCEPSS rescore
- 2026-08-21 23:47 UTCEPSS rescore
- 2026-08-20 22:53 UTCEPSS rescore
- 2026-08-19 17:02 UTCEPSS rescore
- 2026-08-19 17:02 UTCEPSS rescore
- 2026-08-18 13:46 UTCEPSS rescore
- 2026-08-18 13:46 UTCEPSS rescore
- 2026-08-17 13:45 UTCEPSS rescore
- 2026-08-16 14:54 UTCEPSS rescore
- 2026-08-16 12:30 UTCOSV refresh
- 2026-08-16 02:13 UTCEPSS rescore
- 2026-08-15 01:28 UTCEPSS rescore
- 2026-08-13 21:59 UTCEPSS rescore
- 2026-08-12 13:49 UTCEPSS rescore
- 2026-08-11 13:40 UTCEPSS rescore
- 2026-08-10 23:58 UTCEPSS rescore
- 2026-08-09 13:45 UTCEPSS rescore
- 2026-08-08 16:35 UTCEPSS rescore
- 2026-08-07 16:25 UTCEPSS rescore
- 2026-08-06 13:45 UTCEPSS rescore
- 2026-08-05 19:16 UTCEPSS rescore
- 2026-08-04 15:08 UTCEPSS rescore
- 2026-08-04 10:36 UTCEPSS rescore
- 2026-08-03 10:34 UTCEPSS rescore
- 2026-08-02 02:25 UTCEPSS rescore
- 2026-08-02 02:25 UTCEPSS rescore
- 2026-08-01 07:06 UTCOSV refresh
- 2026-08-01 04:14 UTCEPSS rescore
- 2026-07-30 16:26 UTCEPSS rescore
- 2026-07-30 16:26 UTCEPSS rescore
- 2026-07-30 01:29 UTCEPSS rescore
- 2026-07-28 15:34 UTCEPSS rescore
- 2026-07-27 14:11 UTCEPSS rescore
- 2026-07-26 14:53 UTCEPSS rescore
- 2026-07-26 14:53 UTCEPSS rescore
- 2026-07-25 14:16 UTCEPSS rescore
- 2026-07-24 14:16 UTCEPSS rescore
- 2026-07-23 14:17 UTCEPSS rescore
- 2026-07-23 02:36 UTCEG score recompute
- 2026-07-22 14:07 UTCEPSS rescore
- 2026-07-21 15:23 UTCEPSS rescore
- 2026-07-20 17:06 UTCEPSS rescore
- 2026-07-19 14:30 UTCEPSS rescore
- 2026-07-19 14:30 UTCEPSS rescore
- 2026-07-19 02:28 UTCEPSS rescore
- 2026-07-19 02:28 UTCEPSS rescore
- 2026-07-18 10:03 UTCEPSS rescore
- 2026-07-18 10:03 UTCEPSS rescore
- 2026-07-16 17:01 UTCEPSS rescore
- 2026-07-15 16:56 UTCEPSS rescore
- 2026-07-15 16:56 UTCEPSS rescore
- 2026-07-15 01:59 UTCEPSS rescore
- 2026-07-15 01:59 UTCEPSS rescore
- 2026-07-14 14:10 UTCOSV refresh
- 2026-07-13 22:28 UTCEPSS rescore
- 2026-07-13 06:11 UTCEPSS rescore
- 2026-07-12 05:45 UTCEPSS rescore
- 2026-07-11 08:26 UTCEPSS rescore
- 2026-07-11 08:26 UTCEPSS rescore
- 2026-07-09 19:09 UTCEPSS rescore
- 2026-07-08 15:13 UTCEPSS rescore
- 2026-07-07 13:45 UTCEPSS rescore
- 2026-07-07 13:45 UTCEPSS rescore
- 2026-07-06 16:26 UTCEPSS rescore
- 2026-07-06 16:26 UTCEPSS rescore
- 2026-07-06 02:22 UTCEPSS rescore
- 2026-07-06 02:22 UTCEPSS rescore
- 2026-07-05 02:29 UTCEPSS rescore
- 2026-07-04 06:30 UTCEPSS rescore
- 2026-07-02 17:00 UTCEPSS rescore
- 2026-07-01 15:05 UTCEPSS rescore
- 2026-06-30 23:21 UTCEPSS rescore
- 2026-06-30 23:21 UTCEPSS rescore
- 2026-06-29 14:05 UTCEPSS rescore
Frequently asked(5)
What is CVE-2024-32487?
When was CVE-2024-32487 disclosed?
Is CVE-2024-32487 actively exploited?
What is the CVSS score of CVE-2024-32487?
How do I remediate CVE-2024-32487?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2024-32487
Is Your Infrastructure Affected by CVE-2024-32487?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.