Vulnerability Instance
Lookup for vulnerabilities affecting packages.
GET /api/vulnerabilities/96982?format=api
{ "url": "http://public2.vulnerablecode.io/api/vulnerabilities/96982?format=api", "vulnerability_id": "VCID-h6na-nxxq-5yg9", "summary": "A stack buffer overflow vulnerability exists in wolfSSL's PKCS7 SignedData encoding functionality. In wc_PKCS7_BuildSignedAttributes(), when adding custom signed attributes, the code passes an incorrect capacity value (esd->signedAttribsCount) to EncodeAttributes() instead of the remaining available space in the fixed-size signedAttribs[7] array. When an application sets pkcs7->signedAttribsSz to a value greater than MAX_SIGNED_ATTRIBS_SZ (default 7) minus the number of default attributes already added, EncodeAttributes() writes beyond the array bounds, causing stack memory corruption. In WOLFSSL_SMALL_STACK builds, this becomes heap corruption. Exploitation requires an application that allows untrusted input to control the signedAttribs array size when calling wc_PKCS7_EncodeSignedData() or related signing functions.", "aliases": [ { "alias": "CVE-2026-0819" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/942915?format=api", "purl": "pkg:deb/debian/wolfssl@5.9.0-0.1?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/wolfssl@5.9.0-0.1%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/942886?format=api", "purl": "pkg:deb/debian/wolfssl@5.9.0-0.2?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/wolfssl@5.9.0-0.2%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/994704?format=api", "purl": "pkg:deb/debian/wolfssl@5.9.0-0.2", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/wolfssl@5.9.0-0.2" } ], "affected_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/994671?format=api", "purl": "pkg:deb/debian/wolfssl@4.6.0%2Bp1-0%2Bdeb11u2", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1u3q-52yd-1bhe" }, { "vulnerability": "VCID-24s5-d6jt-4kfe" }, { "vulnerability": "VCID-2ry7-trrg-gfdk" }, { "vulnerability": "VCID-47nm-nte5-27fm" }, { "vulnerability": "VCID-4zda-zrq6-hbc8" }, { "vulnerability": "VCID-6n4g-us9a-53g4" }, { "vulnerability": "VCID-6v8z-cfax-zqbh" }, { "vulnerability": "VCID-7xbp-qkvv-bqgm" }, { "vulnerability": "VCID-8735-ectc-j7a3" }, { "vulnerability": "VCID-9hdy-aqa2-w3bd" }, { "vulnerability": "VCID-9jpj-dfsf-qkce" }, { "vulnerability": "VCID-9jw2-3v9v-ruap" }, { "vulnerability": "VCID-9kev-ferz-5bhr" }, { "vulnerability": "VCID-9x14-2t7m-1kbm" }, { "vulnerability": "VCID-cum2-vp1j-syfc" }, { "vulnerability": "VCID-cxhw-3w24-dkes" }, { "vulnerability": "VCID-dpu2-4w42-kygw" }, { "vulnerability": "VCID-euma-vgqx-sbau" }, { "vulnerability": "VCID-f4gq-hqcp-dqe2" }, { "vulnerability": "VCID-f57c-kamk-3bct" }, { "vulnerability": "VCID-fmtp-x6y7-83g1" }, { "vulnerability": "VCID-gcfd-w8je-kqfm" }, { "vulnerability": "VCID-gdur-h588-vbb6" }, { "vulnerability": "VCID-gmdj-a1ys-tqc2" }, { "vulnerability": "VCID-h6na-nxxq-5yg9" }, { "vulnerability": "VCID-hk8r-kk4v-1fa7" }, { "vulnerability": "VCID-jxf4-y1au-5bhw" }, { "vulnerability": "VCID-khur-3ax7-9fhb" }, { "vulnerability": "VCID-n64w-nq6a-m7bv" }, { "vulnerability": "VCID-njbj-f91t-b7f4" }, { "vulnerability": "VCID-su8x-6n42-n3d5" }, { "vulnerability": "VCID-u24a-2khf-uyba" }, { "vulnerability": "VCID-uvht-9bt9-hfbb" }, { "vulnerability": "VCID-v3m6-zajw-bfhb" }, { "vulnerability": "VCID-xfgd-4hs3-vygk" }, { "vulnerability": "VCID-xuyn-pjpb-g7du" }, { "vulnerability": "VCID-xxkx-w5pc-5uap" }, { "vulnerability": "VCID-zhf4-y8v8-gubn" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/wolfssl@4.6.0%252Bp1-0%252Bdeb11u2" }, { "url": "http://public2.vulnerablecode.io/api/packages/942885?format=api", "purl": "pkg:deb/debian/wolfssl@4.6.0%2Bp1-0%2Bdeb11u2?distro=trixie", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1u3q-52yd-1bhe" }, { "vulnerability": "VCID-24s5-d6jt-4kfe" }, { "vulnerability": "VCID-2ry7-trrg-gfdk" }, { "vulnerability": "VCID-47nm-nte5-27fm" }, { "vulnerability": "VCID-4zda-zrq6-hbc8" }, { "vulnerability": "VCID-6n4g-us9a-53g4" }, { "vulnerability": "VCID-6v8z-cfax-zqbh" }, { "vulnerability": "VCID-7xbp-qkvv-bqgm" }, { "vulnerability": "VCID-8735-ectc-j7a3" }, { "vulnerability": "VCID-9hdy-aqa2-w3bd" }, { "vulnerability": "VCID-9jpj-dfsf-qkce" }, { "vulnerability": "VCID-9jw2-3v9v-ruap" }, { "vulnerability": "VCID-9kev-ferz-5bhr" }, { "vulnerability": "VCID-9x14-2t7m-1kbm" }, { "vulnerability": "VCID-cum2-vp1j-syfc" }, { "vulnerability": "VCID-cxhw-3w24-dkes" }, { "vulnerability": "VCID-dpu2-4w42-kygw" }, { "vulnerability": "VCID-euma-vgqx-sbau" }, { "vulnerability": "VCID-f4gq-hqcp-dqe2" }, { "vulnerability": "VCID-f57c-kamk-3bct" }, { "vulnerability": "VCID-fmtp-x6y7-83g1" }, { "vulnerability": "VCID-gcfd-w8je-kqfm" }, { "vulnerability": "VCID-gdur-h588-vbb6" }, { "vulnerability": "VCID-gmdj-a1ys-tqc2" }, { "vulnerability": "VCID-h6na-nxxq-5yg9" }, { "vulnerability": "VCID-hk8r-kk4v-1fa7" }, { "vulnerability": "VCID-jxf4-y1au-5bhw" }, { "vulnerability": "VCID-khur-3ax7-9fhb" }, { "vulnerability": "VCID-n64w-nq6a-m7bv" }, { "vulnerability": "VCID-njbj-f91t-b7f4" }, { "vulnerability": "VCID-su8x-6n42-n3d5" }, { "vulnerability": "VCID-u24a-2khf-uyba" }, { "vulnerability": "VCID-uvht-9bt9-hfbb" }, { "vulnerability": "VCID-v3m6-zajw-bfhb" }, { "vulnerability": "VCID-xfgd-4hs3-vygk" }, { "vulnerability": "VCID-xuyn-pjpb-g7du" }, { "vulnerability": "VCID-xxkx-w5pc-5uap" }, { "vulnerability": "VCID-zhf4-y8v8-gubn" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/wolfssl@4.6.0%252Bp1-0%252Bdeb11u2%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/994672?format=api", "purl": "pkg:deb/debian/wolfssl@5.5.4-2%2Bdeb12u2", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1u3q-52yd-1bhe" }, { "vulnerability": "VCID-24s5-d6jt-4kfe" }, { "vulnerability": "VCID-2ry7-trrg-gfdk" }, { "vulnerability": "VCID-47nm-nte5-27fm" }, { "vulnerability": "VCID-4zda-zrq6-hbc8" }, { "vulnerability": "VCID-6v8z-cfax-zqbh" }, { "vulnerability": "VCID-7xbp-qkvv-bqgm" }, { "vulnerability": "VCID-8735-ectc-j7a3" }, { "vulnerability": "VCID-9hdy-aqa2-w3bd" }, { "vulnerability": "VCID-9jpj-dfsf-qkce" }, { "vulnerability": "VCID-9jw2-3v9v-ruap" }, { "vulnerability": "VCID-9kev-ferz-5bhr" }, { "vulnerability": "VCID-9x14-2t7m-1kbm" }, { "vulnerability": "VCID-cxhw-3w24-dkes" }, { "vulnerability": "VCID-dpu2-4w42-kygw" }, { "vulnerability": "VCID-euma-vgqx-sbau" }, { "vulnerability": "VCID-f57c-kamk-3bct" }, { "vulnerability": "VCID-fmtp-x6y7-83g1" }, { "vulnerability": "VCID-gcfd-w8je-kqfm" }, { "vulnerability": "VCID-gdur-h588-vbb6" }, { "vulnerability": "VCID-gmdj-a1ys-tqc2" }, { "vulnerability": "VCID-h6na-nxxq-5yg9" }, { "vulnerability": "VCID-hk8r-kk4v-1fa7" }, { "vulnerability": "VCID-jxf4-y1au-5bhw" }, { "vulnerability": "VCID-khur-3ax7-9fhb" }, { "vulnerability": "VCID-n64w-nq6a-m7bv" }, { "vulnerability": "VCID-njbj-f91t-b7f4" }, { "vulnerability": "VCID-su8x-6n42-n3d5" }, { "vulnerability": "VCID-u24a-2khf-uyba" }, { "vulnerability": "VCID-uvht-9bt9-hfbb" }, { "vulnerability": "VCID-v3m6-zajw-bfhb" }, { "vulnerability": "VCID-xfgd-4hs3-vygk" }, { "vulnerability": "VCID-xuyn-pjpb-g7du" }, { "vulnerability": "VCID-xxkx-w5pc-5uap" }, { "vulnerability": "VCID-zhf4-y8v8-gubn" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/wolfssl@5.5.4-2%252Bdeb12u2" }, { "url": "http://public2.vulnerablecode.io/api/packages/942883?format=api", "purl": "pkg:deb/debian/wolfssl@5.5.4-2%2Bdeb12u2?distro=trixie", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1u3q-52yd-1bhe" }, { "vulnerability": "VCID-24s5-d6jt-4kfe" }, { "vulnerability": "VCID-2ry7-trrg-gfdk" }, { "vulnerability": "VCID-47nm-nte5-27fm" }, { "vulnerability": "VCID-4zda-zrq6-hbc8" }, { "vulnerability": "VCID-6v8z-cfax-zqbh" }, { "vulnerability": "VCID-7xbp-qkvv-bqgm" }, { "vulnerability": "VCID-8735-ectc-j7a3" }, { "vulnerability": "VCID-9hdy-aqa2-w3bd" }, { "vulnerability": "VCID-9jpj-dfsf-qkce" }, { "vulnerability": "VCID-9jw2-3v9v-ruap" }, { "vulnerability": "VCID-9kev-ferz-5bhr" }, { "vulnerability": "VCID-9x14-2t7m-1kbm" }, { "vulnerability": "VCID-cxhw-3w24-dkes" }, { "vulnerability": "VCID-dpu2-4w42-kygw" }, { "vulnerability": "VCID-euma-vgqx-sbau" }, { "vulnerability": "VCID-f57c-kamk-3bct" }, { "vulnerability": "VCID-fmtp-x6y7-83g1" }, { "vulnerability": "VCID-gcfd-w8je-kqfm" }, { "vulnerability": "VCID-gdur-h588-vbb6" }, { "vulnerability": "VCID-gmdj-a1ys-tqc2" }, { "vulnerability": "VCID-h6na-nxxq-5yg9" }, { "vulnerability": "VCID-hk8r-kk4v-1fa7" }, { "vulnerability": "VCID-jxf4-y1au-5bhw" }, { "vulnerability": "VCID-khur-3ax7-9fhb" }, { "vulnerability": "VCID-n64w-nq6a-m7bv" }, { "vulnerability": "VCID-njbj-f91t-b7f4" }, { "vulnerability": "VCID-su8x-6n42-n3d5" }, { "vulnerability": "VCID-u24a-2khf-uyba" }, { "vulnerability": "VCID-uvht-9bt9-hfbb" }, { "vulnerability": "VCID-v3m6-zajw-bfhb" }, { "vulnerability": "VCID-xfgd-4hs3-vygk" }, { "vulnerability": "VCID-xuyn-pjpb-g7du" }, { "vulnerability": "VCID-xxkx-w5pc-5uap" }, { "vulnerability": "VCID-zhf4-y8v8-gubn" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/wolfssl@5.5.4-2%252Bdeb12u2%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/942887?format=api", "purl": "pkg:deb/debian/wolfssl@5.7.2-0.1%2Bdeb13u1?distro=trixie", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-2ry7-trrg-gfdk" }, { "vulnerability": "VCID-4zda-zrq6-hbc8" }, { "vulnerability": "VCID-6v8z-cfax-zqbh" }, { "vulnerability": "VCID-8735-ectc-j7a3" }, { "vulnerability": "VCID-9jpj-dfsf-qkce" }, { "vulnerability": "VCID-9jw2-3v9v-ruap" }, { "vulnerability": "VCID-9kev-ferz-5bhr" }, { "vulnerability": "VCID-9x14-2t7m-1kbm" }, { "vulnerability": "VCID-cxhw-3w24-dkes" }, { "vulnerability": "VCID-f57c-kamk-3bct" }, { "vulnerability": "VCID-fmtp-x6y7-83g1" }, { "vulnerability": "VCID-gcfd-w8je-kqfm" }, { "vulnerability": "VCID-gdur-h588-vbb6" }, { "vulnerability": "VCID-gmdj-a1ys-tqc2" }, { "vulnerability": "VCID-h6na-nxxq-5yg9" }, { "vulnerability": "VCID-hk8r-kk4v-1fa7" }, { "vulnerability": "VCID-jxf4-y1au-5bhw" }, { "vulnerability": "VCID-khur-3ax7-9fhb" }, { "vulnerability": "VCID-n64w-nq6a-m7bv" }, { "vulnerability": "VCID-njbj-f91t-b7f4" }, { "vulnerability": "VCID-uvht-9bt9-hfbb" }, { "vulnerability": "VCID-v3m6-zajw-bfhb" }, { "vulnerability": "VCID-xuyn-pjpb-g7du" }, { "vulnerability": "VCID-xxkx-w5pc-5uap" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/wolfssl@5.7.2-0.1%252Bdeb13u1%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/994673?format=api", "purl": "pkg:deb/debian/wolfssl@5.7.2-0.1%2Bdeb13u1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-2ry7-trrg-gfdk" }, { "vulnerability": "VCID-4zda-zrq6-hbc8" }, { "vulnerability": "VCID-6v8z-cfax-zqbh" }, { "vulnerability": "VCID-8735-ectc-j7a3" }, { "vulnerability": "VCID-9jpj-dfsf-qkce" }, { "vulnerability": "VCID-9jw2-3v9v-ruap" }, { "vulnerability": "VCID-9kev-ferz-5bhr" }, { "vulnerability": "VCID-9x14-2t7m-1kbm" }, { "vulnerability": "VCID-cxhw-3w24-dkes" }, { "vulnerability": "VCID-f57c-kamk-3bct" }, { "vulnerability": "VCID-fmtp-x6y7-83g1" }, { "vulnerability": "VCID-gcfd-w8je-kqfm" }, { "vulnerability": "VCID-gdur-h588-vbb6" }, { "vulnerability": "VCID-gmdj-a1ys-tqc2" }, { "vulnerability": "VCID-h6na-nxxq-5yg9" }, { "vulnerability": "VCID-hk8r-kk4v-1fa7" }, { "vulnerability": "VCID-jxf4-y1au-5bhw" }, { "vulnerability": "VCID-khur-3ax7-9fhb" }, { "vulnerability": "VCID-n64w-nq6a-m7bv" }, { "vulnerability": "VCID-njbj-f91t-b7f4" }, { "vulnerability": "VCID-uvht-9bt9-hfbb" }, { "vulnerability": "VCID-v3m6-zajw-bfhb" }, { "vulnerability": "VCID-xuyn-pjpb-g7du" }, { "vulnerability": "VCID-xxkx-w5pc-5uap" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/wolfssl@5.7.2-0.1%252Bdeb13u1" } ], "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2026-0819", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00022", "scoring_system": "epss", "scoring_elements": "0.05944", "published_at": "2026-04-13T12:55:00Z" }, { "value": "0.00022", "scoring_system": "epss", "scoring_elements": "0.05953", "published_at": "2026-04-12T12:55:00Z" }, { "value": "0.00022", "scoring_system": "epss", "scoring_elements": "0.05879", "published_at": "2026-04-02T12:55:00Z" }, { "value": "0.00022", "scoring_system": "epss", "scoring_elements": "0.05912", "published_at": "2026-04-04T12:55:00Z" }, { "value": "0.00022", "scoring_system": "epss", "scoring_elements": "0.05904", "published_at": "2026-04-07T12:55:00Z" }, { "value": "0.00022", "scoring_system": "epss", "scoring_elements": "0.05942", "published_at": "2026-04-08T12:55:00Z" }, { "value": "0.00022", "scoring_system": "epss", "scoring_elements": "0.05981", "published_at": "2026-04-09T12:55:00Z" }, { "value": "0.00022", "scoring_system": "epss", "scoring_elements": "0.05962", "published_at": "2026-04-11T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-0819" }, { "reference_url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-0819", "reference_id": "", "reference_type": "", "scores": [], "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-0819" }, { "reference_url": "https://github.com/wolfSSL/wolfssl/pull/9630", "reference_id": "9630", "reference_type": "", "scores": [ { "value": "2.2", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-03-19T17:19:26Z/" } ], "url": "https://github.com/wolfSSL/wolfssl/pull/9630" } ], "weaknesses": [ { "cwe_id": 121, "name": "Stack-based Buffer Overflow", "description": "A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function)." }, { "cwe_id": 787, "name": "Out-of-bounds Write", "description": "The product writes data past the end, or before the beginning, of the intended buffer." } ], "exploits": [], "severity_range_score": "2.2 - 2.2", "exploitability": "0.5", "weighted_severity": "2.0", "risk_score": 1.0, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-h6na-nxxq-5yg9" }