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TI-2020-12362 Aliases CVE-2020-15689GHSA-vr4r-jm4f-grc9

Appweb before 7.2.2 and 8.x before 8.1.0, when built with CGI support, mishandles an HTTP…

Priority LOW 36CWE-476Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-476.

Summary

Appweb before 7.2.2 and 8.x before 8.1.0, when built with CGI support, mishandles an HTTP request with a Range header that lacks an exact range. This may result in a NULL pointer dereference and cause a denial of service.

Why it matters now

EPSS 0.01328 71st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:embedthis:appweb:*:*:*:*:*:*:*:*before 7.2.2; 8.0.0 to before 8.1.0VulnerableEmbedthis
  • cpe:2.3:a:embedthis:appweb:*:*:*:*:*:*:*:* Versions before 7.2.2; 8.0.0 to before 8.1.0 Vulnerable ·Embedthis

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-15689
  2. 2026-10-03 Alias added: GHSA-vr4r-jm4f-grc9

References

Other 1

  • TI-2014-07893 Embedthis Appweb before 4.6.6 and 5.x before 5.2.1 allows remote attackers to cause a… CVSS 2.0MEDIUM 5.0
  • TI-2018-06289 The Embedthis HTTP library, and Appweb versions before 7.0.3, have a logic flaw related… CVSS 3.0HIGH 8.1
  • TI-2018-11058 An issue was discovered in Embedthis GoAhead before 4.0.1 and Appweb before 7.0.2. CVSS 3.1HIGH 7.5
  • TI-2018-11059 An issue was discovered in Embedthis GoAhead before 4.0.1 and Appweb before 7.0.2. CVSS 3.1HIGH 7.5
  • TI-2021-12771 An issue was discovered in src/http/httpLib.c in EmbedThis Appweb Community Edition… CVSS 3.1HIGH 7.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences