High severity7.5NVD Advisory· Published Aug 19, 2021· Updated Jun 17, 2026
CVE-2021-36762
CVE-2021-36762
Description
An issue was discovered in HCC Embedded InterNiche NicheStack through 4.3. The tfshnd():tftpsrv.c TFTP packet processing function doesn't ensure that a filename is adequately '\0' terminated; therefore, a subsequent call to strlen for the filename might read out of bounds of the protocol packet buffer (if no '\0' byte exists within a reasonable range).
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3cpe:2.3:a:hcc-embedded:nichestack:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:hcc-embedded:nichestack:*:*:*:*:*:*:*:*range: <4.3
- (no CPE)range: <=4.3
- HCC Embedded/NicheStackdescription
Patches
Vulnerability mechanics
References
3- www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/nvdMitigationThird Party Advisory
- www.kb.cert.org/vuls/id/608209nvdThird Party AdvisoryUS Government Resource
- www.hcc-embedded.com/about/about-internichenvdProduct
News mentions
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