TI-2020-14504 Aliases CVE-2020-23259 GHSA-8g46-vcjj-g5qj

An issue found in Jsish v.3.0.11 and before allows an attacker to cause a denial of…

HIGH 72CWE-476Published 2023-04-04 · Updated 2025-02-14

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 · CISA ADP. Fix status from CNA. Impact type from CWE-476.

Summary

An issue found in Jsish v.3.0.11 and before allows an attacker to cause a denial of service via the Jsi_Strlen function in the src/jsiChar.c file.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00766 55th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:jsish:jsish::::::::	up to 3.0.11	Vulnerable	Jsish

cpe:2.3:a:jsish:jsish:*:*:*:*:*:*:*:* Versions up to 3.0.11 Vulnerable ·Jsish

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2020-23259
2026-10-03 Alias added: GHSA-8g46-vcjj-g5qj

References

Exploit 1

https://github.com/pcmacdon/jsish/issues/13

Other 1

https://jsish.org/fossil/jsi2/tktview?name=b6bb078e00

TI-2025-40399 A type confusion in jsish 2.0 allows incorrect control flow during execution of the… CVSS 3.1CRITICAL 9.8
TI-2024-16031 Jsish v3.5.0 (commit 42c694c) was discovered to contain a stack-overflow via the… CVSS 3.1CRITICAL 9.8
TI-2024-16033 Jsish v3.5.0 (commit 42c694c) was discovered to contain a use-after-free via the SplitChar at ./src/jsiUtils.c. CVSS 3.1CRITICAL 9.8
TI-2024-16032 Jsish v3.5.0 was discovered to contain a heap-buffer-overflow in ./src/jsiUtils.c. CVSS 3.1CRITICAL 9.8
TI-2020-14415 Integer overflow vulnerability in function Jsi_ObjSetLength in jsish before 3.0.6, allows… CVSS 3.1CRITICAL 9.8
TI-2020-14414 Integer overflow vulnerability in function Jsi_ObjArraySizer in jsish before 3.0.8… CVSS 3.1CRITICAL 9.8

See all 52 →

Sources

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