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CVE-2023-36109

Buffer Overflow vulnerability in JerryScript version 3.0, allows remote attackers to execute...

9.8 CriticalPublic exploit

Buffer Overflow vulnerability in JerryScript version 3.0, allows remote attackers to execute arbitrary code via ecma_stringbuilder_append_raw component at /jerry-core/ecma/base/ecma-helpers-string.c.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

2.37%Up 2.1 points since Sep 22, 2023
90%50%10%1%

What each source reports

NVD Score used 9.8

Buffer Overflow vulnerability in JerryScript version 3.0, allows remote attackers to execute arbitrary code via ecma_stringbuilder_append_raw component at /jerry-core/ecma/base/ecma-helpers-string.c.

Record
CVE-2023-36109
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-120
Updated
2026-11-02
CVE List No score

Buffer Overflow vulnerability in JerryScript version 3.0, allows remote attackers to execute arbitrary code via ecma_stringbuilder_append_raw component at /jerry-core/ecma/base/ecma-helpers-string.c.

Record
CVE-2023-36109
Updated
2026-11-02
EUVDEUVD-2023-40088 No score

Buffer Overflow vulnerability in JerryScript version 3.0, allows remote attackers to execute arbitrary code via ecma_stringbuilder_append_raw component at /jerry-core/ecma/base/ecma-helpers-string.c.

Record
EUVD-2023-40088
Updated
2026-11-03
GitHub AdvisoriesGHSA-7fm9-3h22-jxvh 9.8

Buffer Overflow vulnerability in JerryScript version 3.0, allows remote attackers to execute...

Buffer Overflow vulnerability in JerryScript version 3.0, allows remote attackers to execute arbitrary code via ecma_stringbuilder_append_raw component at /jerry-core/ecma/base/ecma-helpers-string.c.

Record
GHSA-7fm9-3h22-jxvh
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-120
Updated
2026-11-02
OSVUBUNTU-CVE-2023-36109 9.8

Buffer Overflow vulnerability in JerryScript version 3.0, allows remote attackers to execute arbitrary code via ecma_stringbuilder_append_raw component at /jerry-core/ecma/base/ecma-helpers-string.c.

Record
UBUNTU-CVE-2023-36109
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSV No score

Buffer Overflow vulnerability in JerryScript version 3.0, allows remote attackers to execute arbitrary code via ecma_stringbuilder_append_raw component at /jerry-core/ecma/base/ecma-helpers-string.c.

Record
CVE-2023-36109
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
iotjs
Ubuntu:18.04:LTS
 All versions, plus listed versions
1.0-1
 None known
iotjs
Ubuntu:22.04:LTS
 All versions, plus listed versions
1.0+715-1ubuntu2
 None known

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
SourceLinkDate
PoC in GitHubLimesss/CVE-2023-361092023-09-20

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV, PoC in GitHub

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-36109 is a critical vulnerability (CVSS 9.8) in Jerryscript, published September 20, 2023. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 2.37%, the 83rd percentile. No source names a fixed version.

References

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