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Vulnerability record · CVE-2020-22873 · published 13 July 2021

CVE-2020-22873: Jsish classic buffer overflow vulnerability

Jsish · Jsish

Buffer overflow vulnerability in function NumberToPrecisionCmd in jsish before 3.0.7, allows remote attackers to execute arbitrary code.

9.8 CVSS 3.1 Critical EPSS 2.3% · top 17.1% CWE-120 · Classic buffer overflow
9.8CVSS 3.1 base score, v2 7.5
2.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Buffer overflow vulnerability in function NumberToPrecisionCmd in jsish before 3.0.7, allows remote attackers to execute arbitrary code.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/pcmacdon/jsish/commit/430ea27accd4d4ffddc946c9402e7c9064835a18 PatchThird Party Advisory
https://github.com/pcmacdon/jsish/commit/430ea27accd4d4ffddc946c9402e7c9064835a18 PatchThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2025-65570Jsish type confusion vulnerabilityA type confusion in jsish 2.0 allows incorrect control flow during execution of the OP_NEXT opcode. When an “instanceof” expression uses an array ele…EPSS 0.53%9.8CVE-2024-24186Jsish out-of-bounds write vulnerabilityJsish v3.5.0 (commit 42c694c) was discovered to contain a stack-overflow via the component IterGetKeysCallback at /jsish/src/jsiValue.c.EPSS 0.88%9.8CVE-2024-24188Jsish out-of-bounds write vulnerabilityJsish v3.5.0 was discovered to contain a heap-buffer-overflow in ./src/jsiUtils.c.EPSS 0.80%9.8CVE-2024-24189Jsish use after free vulnerabilityJsish v3.5.0 (commit 42c694c) was discovered to contain a use-after-free via the SplitChar at ./src/jsiUtils.c.EPSS 0.69%9.8CVE-2020-22874Jsish integer overflow vulnerabilityInteger overflow vulnerability in function Jsi_ObjArraySizer in jsish before 3.0.8, allows remote attackers to execute arbitrary code.EPSS 3.3%9.8CVE-2020-22875Jsish integer overflow vulnerabilityInteger overflow vulnerability in function Jsi_ObjSetLength in jsish before 3.0.6, allows remote attackers to execute arbitrary code.EPSS 3.3%9.8CVE-2019-1010177Jsish use after free vulnerabilityJsish 2.4.70 2.047 is affected by: Use After Free. The impact is: denial of service and possibly arbitrary code execution. The component is: function…EPSS 2.1%7.8CVE-2021-46482Jsish out-of-bounds write vulnerabilityJsish v3.5.0 was discovered to contain a heap buffer overflow via NumberConstructor at src/jsiNumber.c.EPSS 0.84%

Source: NIST National Vulnerability Database (record CVE-2020-22873), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.