CVE-2023-39128

Exp

GNU gdb (GDB) 13.0.50.20220805-git was discovered to contain a stack overflow via the function ada_decode at /gdb/ada-lang.c.

Published: 2023-07-25 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-39128 is rated Exploit Available (50/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.29%). 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-2023-39128

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

Exploit prediction scoring system (EPSS) score for CVE-2023-39128

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 2026-06-15 0.04% 0.29% +0.25%
2 2025-03-30 0.06% 0.04% -0.02%
3 2025-03-29 — 0.06% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-39128

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.5 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/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: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.
 1.8 3.6 [email protected]

Weakness enumeration for CVE-2023-39128

OS Trackers for CVE-2023-39128

vendor priority summary link
debian unimportant CVE-2023-39128 unimportant priority: Debian including 1 source packages (gdb), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): open 5. https://security-tracker.debian.org/tracker/CVE-2023-39128
redhat — — https://access.redhat.com/security/cve/CVE-2023-39128
suse medium CVE-2023-39128 severity moderate: SUSE including 3 source package names (gdb, gdbserver, gdbserver-32bit), 64 product×package rows across 38 product lines (SUSE CaaS Platform 4.0, SUSE Enterprise Storage 7.1, … (38 product lines)): Known Not Affected 64. https://www.suse.com/security/cve/CVE-2023-39128/
ubuntu low CVE-2023-39128 low priority: Ubuntu including 1 source packages (gdb), 9 status rows across 9 suites (bionic, focal, jammy, lunar, mantic, noble, trusty, upstream, xenial): released 4, not-affected 3, ignored 2. https://ubuntu.com/security/CVE-2023-39128

Affected software / configurations for CVE-2023-39128

Vendor Product Version Raw CPE
gnu gdb 13.0.50.20220805-git cpe:2.3:a:gnu:gdb:13.0.50.20220805-git:*:*:*:*:*:*:*

References for CVE-2023-39128

URL Tags
https://sourceware.org/bugzilla/show_bug.cgi?id=30639 Exploit Issue Tracking Third Party Advisory
cvelogic Threat Intelligence