CVE-2021-36530
CVE-2021-36530 is a high-severity vulnerability in Miniupnp Project Ngiflib with a CVSS 3.x base score of 8.8. 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-787.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- CVSS v2: 6.8
- EPSS exploit prediction: 1% (61st percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-787
- Affected product: Miniupnp Project Ngiflib
- Published:
- Last modified:
Description
ngiflib 0.4 has a heap overflow in GetByteStr() at ngiflib.c:108 in NGIFLIB_NO_FILE mode, GetByteStr() copy memory buffer without checking the boundary.
Frequently asked questions
- What is CVE-2021-36530?
- ngiflib 0.4 has a heap overflow in GetByteStr() at ngiflib.c:108 in NGIFLIB_NO_FILE mode, GetByteStr() copy memory buffer without checking the boundary.
- How severe is CVE-2021-36530?
- CVE-2021-36530 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2021-36530 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-36530?
- CVE-2021-36530 affects Miniupnp Project Ngiflib. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-36530?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2021-36530 published?
- CVE-2021-36530 was published on 2021-08-27 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:miniupnp_project:ngiflib:0.4:*:*:*:*:*:*:*
More vulnerabilities in Miniupnp Project Ngiflib
- CVE-2018-11576 — Critical (CVSS 9.8): ngiflib.c in MiniUPnP ngiflib 0.4 has a heap-based buffer over-read in GifIndexToTrueColor.
- CVE-2018-11575 — Critical (CVSS 9.8): ngiflib.c in MiniUPnP ngiflib 0.4 has a stack-based buffer overflow in DecodeGifImg.
- CVE-2021-36531 — High (CVSS 8.8): ngiflib 0.4 has a heap overflow in GetByte() at ngiflib.c:70 in NGIFLIB_NO_FILE mode, GetByte() reads memory buffer…
- CVE-2019-20219 — High (CVSS 8.8): ngiflib 0.4 has a heap-based buffer over-read in GifIndexToTrueColor in ngiflib.c.
- CVE-2019-16347 — High (CVSS 8.8): ngiflib 0.4 has a heap-based buffer overflow in WritePixels() in ngiflib.c when called from DecodeGifImg, because…
- CVE-2019-16346 — High (CVSS 8.8): ngiflib 0.4 has a heap-based buffer overflow in WritePixel() in ngiflib.c when called from DecodeGifImg, because…
All CVEs affecting Miniupnp Project Ngiflib →
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