How severe is CVE-2023-43281?

CVE-2023-43281 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-43281 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-43281?

CVE-2023-43281 affects Nothings Stb Image.h. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-43281?

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

When was CVE-2023-43281 published?

CVE-2023-43281 was published on 2023-10-25 and last updated on 2026-06-17.

CVE-2023-43281

CVE-2023-43281 is a medium-severity vulnerability in Nothings Stb Image.h with a CVSS 3.x base score of 6.5. 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-415.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-415
Affected product: Nothings Stb Image.h
Published: 2023-10-25
Last modified: 2026-06-17

Description

Double Free vulnerability in Nothings Stb Image.h v.2.28 allows a remote attacker to cause a denial of service via a crafted file to the stbi_load_gif_main function.

Frequently asked questions

What is CVE-2023-43281?: Double Free vulnerability in Nothings Stb Image.h v.2.28 allows a remote attacker to cause a denial of service via a crafted file to the stbi_load_gif_main function.
How severe is CVE-2023-43281?: CVE-2023-43281 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-43281 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-43281?: CVE-2023-43281 affects Nothings Stb Image.h. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-43281?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-43281 published?: CVE-2023-43281 was published on 2023-10-25 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:nothings:stb_image.h:2.28:*:*:*:*:*:*:*

More vulnerabilities in Nothings Stb Image.h

CVE-2022-28042 — High (CVSS 8.8): stb_image.h v2.27 was discovered to contain an heap-based use-after-free via the function stbi__jpeg_huff_decode.
CVE-2019-19777 — High (CVSS 8.8): stb_image.h (aka the stb image loader) 2.23, as used in libsixel and other products, has a heap-based buffer over-read…
CVE-2018-16981 — High (CVSS 8.8): stb stb_image.h 2.19, as used in catimg, Emscripten, and other products, has a heap-based buffer overflow in the…
CVE-2023-45666 — High (CVSS 7.3): stb_image is a single file MIT licensed library for processing images. It may look like `stbi__load_gif_main`…
CVE-2023-45664 — High (CVSS 7.3): stb_image is a single file MIT licensed library for processing images. A crafted image file can trigger…
CVE-2021-42716 — High (CVSS 7.1): An issue was discovered in stb stb_image.h 2.27. The PNM loader incorrectly interpreted 16-bit PGM files as 8-bit when…

All CVEs affecting Nothings Stb Image.h →

Other CWE-415 (Double Free) vulnerabilities

CVE-2018-0101 — Critical (CVSS 10.0): A vulnerability in the Secure Sockets Layer (SSL) VPN functionality of the Cisco Adaptive Security Appliance (ASA)…
CVE-2026-8925 — Critical (CVSS 9.8): The curl logic that works with SASL authentication could end up cleaning up the GSASL context *twice* without clearing…
CVE-2020-37239 — Critical (CVSS 9.8): libbabl 0.1.62 contains a broken double free detection vulnerability that allows attackers to bypass memory safety…
CVE-2026-43414 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Completely fix fcport double…
CVE-2026-43011 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: net/x25: Fix potential double free of skb When…
CVE-2026-31609 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: smb: client: avoid double-free in…

Browse all CWE-415 (Double Free) vulnerabilities →