How severe is CVE-2023-45680?

CVE-2023-45680 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2023-45680 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-45680?

CVE-2023-45680 affects Nothings Stb Vorbis.c. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-45680?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-45680 published?

CVE-2023-45680 was published on 2023-10-21 and last updated on 2026-06-17.

CVE-2023-45680

CVE-2023-45680 is a medium-severity vulnerability in Nothings Stb Vorbis.c with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-476.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Nothings Stb Vorbis.c
Published: 2023-10-21
Last modified: 2026-06-17

Description

stb_vorbis is a single file MIT licensed library for processing ogg vorbis files. A crafted file may trigger memory allocation failure in `start_decoder`. In that case the function returns early, the `f->comment_list` is set to `NULL`, but `f->comment_list_length` is not reset. Later in `vorbis_deinit` it tries to dereference the `NULL` pointer. This issue may lead to denial of service.

Frequently asked questions

What is CVE-2023-45680?: stb_vorbis is a single file MIT licensed library for processing ogg vorbis files. A crafted file may trigger memory allocation failure in `start_decoder`. In that case the function returns early, the `f->comment_list` is set to `NULL`, but `f->comment_list_length` is not reset. Later in `vorbis_deinit` it tries to dereference the `NULL` pointer. This issue may lead to denial of service.
How severe is CVE-2023-45680?: CVE-2023-45680 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2023-45680 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-45680?: CVE-2023-45680 affects Nothings Stb Vorbis.c. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-45680?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-45680 published?: CVE-2023-45680 was published on 2023-10-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:nothings:stb_vorbis.c:1.22:*:*:*:*:*:*:*

More vulnerabilities in Nothings Stb Vorbis.c

CVE-2023-47212 — Critical (CVSS 9.8): A heap-based buffer overflow vulnerability exists in the comment functionality of stb _vorbis.c v1.22. A specially…
CVE-2023-45681 — High (CVSS 7.3): stb_vorbis is a single file MIT licensed library for processing ogg vorbis files. A crafted file may trigger memory…
CVE-2023-45679 — High (CVSS 7.3): stb_vorbis is a single file MIT licensed library for processing ogg vorbis files. A crafted file may trigger memory…
CVE-2023-45677 — High (CVSS 7.3): stb_vorbis is a single file MIT licensed library for processing ogg vorbis files. A crafted file may trigger out of…
CVE-2023-45676 — High (CVSS 7.3): stb_vorbis is a single file MIT licensed library for processing ogg vorbis files. A crafted file may trigger out of…
CVE-2023-45678 — Medium (CVSS 6.5): stb_vorbis is a single file MIT licensed library for processing ogg vorbis files. A crafted file may trigger out of…

All CVEs affecting Nothings Stb Vorbis.c →

Other CWE-476 (NULL Pointer Dereference) vulnerabilities

CVE-2022-36648 — Critical (CVSS 10.0): The hardware emulation in the of_dpa_cmd_add_l2_flood of rocker device model in QEMU, as used in 7.0.0 and earlier,…
CVE-2020-14500 — Critical (CVSS 10.0): Secomea GateManager all versions prior to 9.2c, An attacker can send a negative value and overwrite arbitrary data.
CVE-2010-2495 — Critical (CVSS 10.0): The pppol2tp_xmit function in drivers/net/pppol2tp.c in the L2TP implementation in the Linux kernel before 2.6.34 does…
CVE-2026-46195 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: smb: client: validate dacloffset before building…
CVE-2026-31657 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: batman-adv: hold claim backbone gateways by…
CVE-2026-31436 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: fix possible wrong descriptor…

Browse all CWE-476 (NULL Pointer Dereference) vulnerabilities →