CVE-2022-30065

Exp

A use-after-free in Busybox 1.35-x's awk applet leads to denial of service and possibly code execution when processing a crafted awk pattern in the copyvar function.

Published: 2022-05-18 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2022-30065 is rated High Exploit Risk (71.2/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.66%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

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

Public exploit references (Exploit-DB) for CVE-2022-30065

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2022-30065

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 2026-04-15 0.51% 0.66% +0.15%
2 2026-02-15 0.64% 0.51% -0.13%
3 2025-11-21 — 0.64% —

Full EPSS history (13 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-30065

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H 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: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:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.9 [email protected]
6.8 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 6.4 [email protected]

Weakness enumeration for CVE-2022-30065

OS Trackers for CVE-2022-30065

vendor priority summary link
alpine high CVE-2022-30065: 1 source package rows (busybox); 33 state rows across 7 repos (3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 22, open 11. https://security.alpinelinux.org/vuln/CVE-2022-30065
debian unimportant CVE-2022-30065 unimportant priority: Debian including 1 source packages (busybox), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 3, open 2. https://security-tracker.debian.org/tracker/CVE-2022-30065
redhat medium — https://access.redhat.com/security/cve/CVE-2022-30065
suse medium CVE-2022-30065 severity moderate: SUSE including 124 source package names (15.4:busybox-1.35.0-150400.3.8.1, 15.4:busybox-adduser-1.35.0-150400.4.3.14, …), 183 product×package rows across 17 product lines (Container bci/bci-busybox, SUSE Linux Enterprise Module for Basesystem 15 SP3, … (17 product lines)): Fixed 182, Will Not Fix 1. https://www.suse.com/security/cve/CVE-2022-30065/
ubuntu low CVE-2022-30065 low priority: Ubuntu including 1 source packages (busybox), 7 status rows across 7 suites (bionic, focal, impish, jammy, trusty, upstream, xenial): not-affected 7. https://ubuntu.com/security/CVE-2022-30065

Affected software / configurations for CVE-2022-30065

Vendor Product Version Raw CPE
busybox busybox 1.35.0 cpe:2.3:a:busybox:busybox:1.35.0:*:*:*:*:*:*:*
siemens scalance_sc622-2c_firmware < 3.0 cpe:2.3:o:siemens:scalance_sc622-2c_firmware:*:*:*:*:*:*:*:*
siemens scalance_sc626-2c_firmware < 3.0 cpe:2.3:o:siemens:scalance_sc626-2c_firmware:*:*:*:*:*:*:*:*
siemens scalance_sc632-2c_firmware < 3.0 cpe:2.3:o:siemens:scalance_sc632-2c_firmware:*:*:*:*:*:*:*:*
siemens scalance_sc636-2c_firmware < 3.0 cpe:2.3:o:siemens:scalance_sc636-2c_firmware:*:*:*:*:*:*:*:*
siemens scalance_sc642-2c_firmware < 3.0 cpe:2.3:o:siemens:scalance_sc642-2c_firmware:*:*:*:*:*:*:*:*
siemens scalance_sc646-2c_firmware < 3.0 cpe:2.3:o:siemens:scalance_sc646-2c_firmware:*:*:*:*:*:*:*:*

References for CVE-2022-30065

URL Tags
https://bugs.busybox.net/show_bug.cgi?id=14781 Exploit Issue Tracking Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-333517.pdf Third Party Advisory
cvelogic Threat Intelligence