Evidence used
- No CISA KEV confirmation is currently recorded.
- A structured source references public exploit or proof-of-concept material.
- EPSS is 1.90% for the current model date.
BlackTreeCVE IntelligenceUnknown · Unknown
Official source article: Siemens SSA-202008 ↗. Check the applicable product and release in the original source.
High technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance. Verified remediation exists for at least one product or source, but 18 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.
Verified remediation exists for at least one product or source, but 18 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.
Alpine, Debian findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.
A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.
| Distribution release | Source package | Vendor state | Fixed version | Evidence |
|---|---|---|---|---|
| Alpine v3.23v3.23 · main | json-c | Vendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected. | 0.14-r1 | Alpine Security Database ↗Source updated 3 Oct 2026 |
| Alpine v3.23v3.23 · main | libfastjson | Vendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected. | 1.2304.0-r0 | Alpine Security Database ↗Source updated 3 Oct 2026 |
| Alpine v3.22v3.22 · main | json-c | Vendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected. | 0.14-r1 | Alpine Security Database ↗Source updated 3 Oct 2026 |
| Alpine v3.22v3.22 · main | libfastjson | Vendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected. | 1.2304.0-r0 | Alpine Security Database ↗Source updated 3 Oct 2026 |
| Alpine v3.21v3.21 · main | json-c | Vendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected. | 0.14-r1 | Alpine Security Database ↗Source updated 3 Oct 2026 |
| Alpine v3.21v3.21 · main | libfastjson | Vendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected. | 1.2304.0-r0 | Alpine Security Database ↗Source updated 3 Oct 2026 |
| Debian trixietrixie · source | json-c | Vendor fix publishedDebian records a fixed source-package version for this release. | 0.13.1+dfsg-8 | Debian Security Tracker ↗Source updated 5 Oct 2026 |
| Debian trixietrixie · source | libfastjson | Vendor fix publishedDebian records a fixed source-package version for this release. | 1.2304.0-1 | Debian Security Tracker ↗Source updated 5 Oct 2026 |
| Debian bookwormbookworm · source | json-c | Vendor fix publishedDebian records a fixed source-package version for this release. | 0.13.1+dfsg-8 | Debian Security Tracker ↗Source updated 5 Oct 2026 |
| Debian bookwormbookworm · source | libfastjson | Vendor fix publishedDebian records a fixed source-package version for this release. | 1.2304.0-1 | Debian Security Tracker ↗Source updated 5 Oct 2026 |
| Debian forkyforky · source | json-c | Vendor fix publishedDebian records a fixed source-package version for this release. | 0.13.1+dfsg-8 | Debian Security Tracker ↗Source updated 5 Oct 2026 |
| Debian forkyforky · source | libfastjson | Vendor fix publishedDebian records a fixed source-package version for this release. | 1.2304.0-1 | Debian Security Tracker ↗Source updated 5 Oct 2026 |
| Debian sidsid · source | json-c | Vendor fix publishedDebian records a fixed source-package version for this release. | 0.13.1+dfsg-8 | Debian Security Tracker ↗Source updated 5 Oct 2026 |
| Debian sidsid · source | libfastjson | Vendor fix publishedDebian records a fixed source-package version for this release. | 1.2304.0-1 | Debian Security Tracker ↗Source updated 5 Oct 2026 |
Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.
The vendor explicitly identifies these products as affected by this CVE.
The vendor explicitly identifies these products as affected by this CVE.
The vendor explicitly identifies these products as affected by this CVE.
The vendor explicitly identifies these products as affected by this CVE.
The vendor explicitly identifies these products as affected by this CVE.
High technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance. Verified remediation exists for at least one product or source, but 18 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.
Fix availability varies by productjson-c through 0.14 has an integer overflow and out-of-bounds write via a large JSON file, as demonstrated by printbuf_memappend.
json-c through 0.14 has an integer overflow and out-of-bounds write via a large JSON file, as demonstrated by printbuf_memappend.
A bounds error lets data be written beyond the intended memory region, potentially corrupting control data.
An attacker operating through local access may attempt exploitation without authentication after a user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.
json-c through 0.14 has an integer overflow and out-of-bounds write via a large JSON file, as demonstrated by printbuf_memappend.
A bounds error lets data be written beyond the intended memory region, potentially corrupting control data.
An attacker operating through local access may attempt exploitation without authentication after a user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.
CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.
No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.
A structured CVE source labels at least one public reference as exploit material. BlackTree has not independently validated that it is safe, reliable or weaponised.
CWE-787: Out-of-bounds Write. The product writes data past the end, or before the beginning, of the intended buffer.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HCommon Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.
Operational remediation based on structured source evidence.
Published 9 May 2020 · Last source change 3 Nov 2025, 19:25 UTC · CWE-787 · Out-of-bounds Write
Missing structured fields: affected product. Missing data is not evidence of low risk; review the primary advisory.