CVE-2026-38752

A stack overflow in the evaluate() function (editors/awk.c) of BusyBox commit 371fe9 allows attackers to cause a Denial of Service (DoS) via supplying a crafted AWK script.

Published: 2026-07-15 Last update: 2026-07-20 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-38752 is rated Low Risk (15.3/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.21%). Low composite risk—no urgent action required; patch on your normal maintenance cycle and revisit priority if CVSS or EPSS increases.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2026-38752

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-07-21 0.31% 0.21% -0.10%
2 2026-07-17 0.16% 0.31% +0.15%
3 2026-07-16 — 0.16% —

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-38752

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
2.9 3.1 LOW
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 1.4 1.4 [email protected]
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2026-38752

GitHub Security Advisory for CVE-2026-38752

GHSA-fj27-x67r-v4g5 · Severity: high — A stack overflow in the evaluate() function (editors/awk.c) of BusyBox commit 371fe9 allows...

OS Trackers for CVE-2026-38752

vendor priority summary link
debian not yet assigned CVE-2026-38752 not yet assigned priority: Debian including 1 source packages (busybox), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): open 5. https://security-tracker.debian.org/tracker/CVE-2026-38752
suse low — https://www.suse.com/security/cve/CVE-2026-38752/
ubuntu medium CVE-2026-38752 medium priority: Ubuntu including 1 source packages (busybox), 8 status rows across 8 suites (bionic, focal, jammy, noble, resolute, trusty, upstream, xenial): needs-triage 8. https://ubuntu.com/security/CVE-2026-38752

Affected software / configurations for CVE-2026-38752

Vendor Product Version Raw CPE
busybox busybox 2024-07-13 cpe:2.3:a:busybox:busybox:2024-07-13:*:*:*:*:*:*:*

References for CVE-2026-38752

cvelogic Threat Intelligence