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170 vulnerabilities found for mJS by Cesanta
CVE-2026-86716 (GCVE-0-2026-86716)
Vulnerability from nvd – Published: 2026-09-08 18:45 – Updated: 2026-09-08 19:08
VLAI
EPSS
VEX
Title
Cesanta mJS mjs_tok.c skip_spaces_and_comments heap-based overflow
Summary
A vulnerability was determined in Cesanta mJS up to 1.26. Affected is the function skip_spaces_and_comments of the file src/mjs_tok.c. Executing a manipulation can lead to heap-based buffer overflow. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 19:07 UTC
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/399773 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/399773/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-86716 | third-party-advisory |
| https://vuldb.com/submit/910881 | third-party-advisory |
| https://vuldb.com/submit/910882 | third-party-advisory |
| https://github.com/cesanta/mjs/issues/324 | exploitissue-tracking |
| https://github.com/cesanta/mjs/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cesanta | mJS |
Affected:
1.0
Affected: 1.1 Affected: 1.2 Affected: 1.3 Affected: 1.4 Affected: 1.5 Affected: 1.6 Affected: 1.7 Affected: 1.8 Affected: 1.9 Affected: 1.10 Affected: 1.11 Affected: 1.12 Affected: 1.13 Affected: 1.14 Affected: 1.15 Affected: 1.16 Affected: 1.17 Affected: 1.18 Affected: 1.19 Affected: 1.20 Affected: 1.21 Affected: 1.22 Affected: 1.23 Affected: 1.24 Affected: 1.25 Affected: 1.26 cpe:2.3:a:cesanta:mjs:*:*:*:*:*:*:*:* |
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CVE-2024-35386 (GCVE-0-2024-35386)
Vulnerability from nvd – Published: 2024-05-21 13:36 – Updated: 2025-03-13 13:50
VLAI
EPSS
VEX
Summary
An issue in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial of service via the mjs_do_gc function in the mjs.c file.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-05-21 15:33 UTC
Assigner
References
1 reference
Impacted products
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CVE-2024-35385 (GCVE-0-2024-35385)
Vulnerability from nvd – Published: 2024-05-21 13:39 – Updated: 2025-02-13 15:58
VLAI
EPSS
VEX
Summary
An issue in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial of service via the mjs_mk_ffi_sig function in the mjs.c file.
Severity
4.3 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-05-21 14:50 UTC
CWE
- n/a
- CWE-125 - Out-of-bounds Read
Assigner
References
1 reference
Impacted products
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CVE-2024-35384 (GCVE-0-2024-35384)
Vulnerability from nvd – Published: 2024-05-21 13:38 – Updated: 2025-03-13 19:43
VLAI
EPSS
VEX
Summary
An issue in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial of service via the mjs_array_length function in the mjs.c file.
Severity
5.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-05-21 19:16 UTC
CWE
- n/a
- CWE-20 - Improper Input Validation
Assigner
References
1 reference
Impacted products
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CVE-2023-49553 (GCVE-0-2023-49553)
Vulnerability from nvd – Published: 2024-01-02 00:00 – Updated: 2025-06-03 14:53
VLAI
EPSS
VEX
Summary
An issue in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial of service via the mjs_destroy function in the msj.c file.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-05-09 23:58 UTC
Assigner
References
1 reference
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CVE-2023-49552 (GCVE-0-2023-49552)
Vulnerability from nvd – Published: 2024-01-02 00:00 – Updated: 2025-04-17 18:39
VLAI
EPSS
VEX
Summary
An Out of Bounds Write in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial of service via the mjs_op_json_stringify function in the msj.c file.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-01-08 16:55 UTC
CWE
- n/a
- CWE-787 - Out-of-bounds Write
Assigner
References
1 reference
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CVE-2023-49551 (GCVE-0-2023-49551)
Vulnerability from nvd – Published: 2024-01-02 00:00 – Updated: 2024-09-06 17:57
VLAI
EPSS
VEX
Summary
An issue in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial of service via the mjs_op_json_parse function in the msj.c file.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-03-04 21:11 UTC
CWE
- n/a
- CWE-20 - Improper Input Validation
Assigner
References
1 reference
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CVE-2023-49550 (GCVE-0-2023-49550)
Vulnerability from nvd – Published: 2024-01-02 00:00 – Updated: 2025-05-16 17:28
VLAI
EPSS
VEX
Summary
An issue in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial of service via the mjs+0x4ec508 component.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-05-16 17:25 UTC
CWE
- n/a
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
1 reference
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CVE-2023-49549 (GCVE-0-2023-49549)
Vulnerability from nvd – Published: 2024-01-02 00:00 – Updated: 2025-06-16 19:33
VLAI
EPSS
VEX
Summary
An issue in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial of service via the mjs_getretvalpos function in the msj.c file.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-01-30 16:28 UTC
Assigner
References
1 reference
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CVE-2023-50044 (GCVE-0-2023-50044)
Vulnerability from nvd – Published: 2023-12-20 00:00 – Updated: 2024-08-02 22:09
VLAI
EPSS
VEX
Summary
Cesanta MJS 2.20.0 has a getprop_builtin_foreign out-of-bounds read if a Built-in API name occurs in a substring of an input string.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
2 references
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CVE-2023-43338 (GCVE-0-2023-43338)
Vulnerability from nvd – Published: 2023-09-22 00:00 – Updated: 2024-09-24 15:50
VLAI
EPSS
VEX
Summary
Cesanta mjs v2.20.0 was discovered to contain a function pointer hijacking vulnerability via the function mjs_get_ptr(). This vulnerability allows attackers to execute arbitrary code via a crafted input.
Severity
No CVSS data available.
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-24 15:50 UTC
CWE
- n/a
Assigner
References
1 reference
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CVE-2023-30088 (GCVE-0-2023-30088)
Vulnerability from nvd – Published: 2023-05-09 00:00 – Updated: 2025-01-29 20:38
VLAI
EPSS
VEX
Summary
An issue found in Cesanta MJS v.1.26 allows a local attacker to cause a denial of service via the mjs_execute function in mjs.c.
Severity
5.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-01-29 20:37 UTC
CWE
- n/a
Assigner
References
1 reference
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CVE-2023-30087 (GCVE-0-2023-30087)
Vulnerability from nvd – Published: 2023-05-09 00:00 – Updated: 2025-01-29 14:37
VLAI
EPSS
VEX
Summary
Buffer Overflow vulnerability found in Cesanta MJS v.1.26 allows a local attacker to cause a denial of service via the mjs_mk_string function in mjs.c.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-01-29 14:37 UTC
CWE
- n/a
- CWE-787 - Out-of-bounds Write
Assigner
References
1 reference
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CVE-2023-29570 (GCVE-0-2023-29570)
Vulnerability from nvd – Published: 2023-04-24 00:00 – Updated: 2025-02-04 16:20
VLAI
EPSS
VEX
Summary
Cesanta MJS v2.20.0 was discovered to contain a SEGV vulnerability via mjs_ffi_cb_free at src/mjs_ffi.c. This vulnerability can lead to a Denial of Service (DoS).
Severity
5.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-04 16:17 UTC
CWE
- n/a
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
2 references
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CVE-2023-29569 (GCVE-0-2023-29569)
Vulnerability from nvd – Published: 2023-04-14 00:00 – Updated: 2025-02-06 21:20
VLAI
EPSS
VEX
Summary
Cesanta MJS v2.20.0 was discovered to contain a SEGV vulnerability via ffi_cb_impl_wpwwwww at src/mjs_ffi.c. This vulnerability can lead to a Denial of Service (DoS).
Severity
5.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-06 21:19 UTC
CWE
- n/a
- CWE-476 - NULL Pointer Dereference
Assigner
References
2 references
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CVE-2026-86716 (GCVE-0-2026-86716)
Vulnerability from cvelistv5 – Published: 2026-09-08 18:45 – Updated: 2026-09-08 19:08
VLAI
EPSS
VEX
Title
Cesanta mJS mjs_tok.c skip_spaces_and_comments heap-based overflow
Summary
A vulnerability was determined in Cesanta mJS up to 1.26. Affected is the function skip_spaces_and_comments of the file src/mjs_tok.c. Executing a manipulation can lead to heap-based buffer overflow. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 19:07 UTC
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/399773 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/399773/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-86716 | third-party-advisory |
| https://vuldb.com/submit/910881 | third-party-advisory |
| https://vuldb.com/submit/910882 | third-party-advisory |
| https://github.com/cesanta/mjs/issues/324 | exploitissue-tracking |
| https://github.com/cesanta/mjs/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cesanta | mJS |
Affected:
1.0
Affected: 1.1 Affected: 1.2 Affected: 1.3 Affected: 1.4 Affected: 1.5 Affected: 1.6 Affected: 1.7 Affected: 1.8 Affected: 1.9 Affected: 1.10 Affected: 1.11 Affected: 1.12 Affected: 1.13 Affected: 1.14 Affected: 1.15 Affected: 1.16 Affected: 1.17 Affected: 1.18 Affected: 1.19 Affected: 1.20 Affected: 1.21 Affected: 1.22 Affected: 1.23 Affected: 1.24 Affected: 1.25 Affected: 1.26 cpe:2.3:a:cesanta:mjs:*:*:*:*:*:*:*:* |
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CVE-2024-35385 (GCVE-0-2024-35385)
Vulnerability from cvelistv5 – Published: 2024-05-21 13:39 – Updated: 2025-02-13 15:58
VLAI
EPSS
VEX
Summary
An issue in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial of service via the mjs_mk_ffi_sig function in the mjs.c file.
Severity
4.3 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-05-21 14:50 UTC
CWE
- n/a
- CWE-125 - Out-of-bounds Read
Assigner
References
1 reference
Impacted products
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CVE-2024-35384 (GCVE-0-2024-35384)
Vulnerability from cvelistv5 – Published: 2024-05-21 13:38 – Updated: 2025-03-13 19:43
VLAI
EPSS
VEX
Summary
An issue in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial of service via the mjs_array_length function in the mjs.c file.
Severity
5.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-05-21 19:16 UTC
CWE
- n/a
- CWE-20 - Improper Input Validation
Assigner
References
1 reference
Impacted products
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CVE-2024-35386 (GCVE-0-2024-35386)
Vulnerability from cvelistv5 – Published: 2024-05-21 13:36 – Updated: 2025-03-13 13:50
VLAI
EPSS
VEX
Summary
An issue in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial of service via the mjs_do_gc function in the mjs.c file.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-05-21 15:33 UTC
Assigner
References
1 reference
Impacted products
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CVE-2023-49550 (GCVE-0-2023-49550)
Vulnerability from cvelistv5 – Published: 2024-01-02 00:00 – Updated: 2025-05-16 17:28
VLAI
EPSS
VEX
Summary
An issue in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial of service via the mjs+0x4ec508 component.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-05-16 17:25 UTC
CWE
- n/a
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
1 reference
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CVE-2023-49553 (GCVE-0-2023-49553)
Vulnerability from cvelistv5 – Published: 2024-01-02 00:00 – Updated: 2025-06-03 14:53
VLAI
EPSS
VEX
Summary
An issue in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial of service via the mjs_destroy function in the msj.c file.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-05-09 23:58 UTC
Assigner
References
1 reference
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CVE-2023-49549 (GCVE-0-2023-49549)
Vulnerability from cvelistv5 – Published: 2024-01-02 00:00 – Updated: 2025-06-16 19:33
VLAI
EPSS
VEX
Summary
An issue in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial of service via the mjs_getretvalpos function in the msj.c file.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-01-30 16:28 UTC
Assigner
References
1 reference
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CVE-2023-49551 (GCVE-0-2023-49551)
Vulnerability from cvelistv5 – Published: 2024-01-02 00:00 – Updated: 2024-09-06 17:57
VLAI
EPSS
VEX
Summary
An issue in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial of service via the mjs_op_json_parse function in the msj.c file.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-03-04 21:11 UTC
CWE
- n/a
- CWE-20 - Improper Input Validation
Assigner
References
1 reference
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CVE-2023-49552 (GCVE-0-2023-49552)
Vulnerability from cvelistv5 – Published: 2024-01-02 00:00 – Updated: 2025-04-17 18:39
VLAI
EPSS
VEX
Summary
An Out of Bounds Write in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial of service via the mjs_op_json_stringify function in the msj.c file.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-01-08 16:55 UTC
CWE
- n/a
- CWE-787 - Out-of-bounds Write
Assigner
References
1 reference
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CVE-2023-50044 (GCVE-0-2023-50044)
Vulnerability from cvelistv5 – Published: 2023-12-20 00:00 – Updated: 2024-08-02 22:09
VLAI
EPSS
VEX
Summary
Cesanta MJS 2.20.0 has a getprop_builtin_foreign out-of-bounds read if a Built-in API name occurs in a substring of an input string.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
2 references
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CVE-2023-43338 (GCVE-0-2023-43338)
Vulnerability from cvelistv5 – Published: 2023-09-22 00:00 – Updated: 2024-09-24 15:50
VLAI
EPSS
VEX
Summary
Cesanta mjs v2.20.0 was discovered to contain a function pointer hijacking vulnerability via the function mjs_get_ptr(). This vulnerability allows attackers to execute arbitrary code via a crafted input.
Severity
No CVSS data available.
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-24 15:50 UTC
CWE
- n/a
Assigner
References
1 reference
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CVE-2023-30087 (GCVE-0-2023-30087)
Vulnerability from cvelistv5 – Published: 2023-05-09 00:00 – Updated: 2025-01-29 14:37
VLAI
EPSS
VEX
Summary
Buffer Overflow vulnerability found in Cesanta MJS v.1.26 allows a local attacker to cause a denial of service via the mjs_mk_string function in mjs.c.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-01-29 14:37 UTC
CWE
- n/a
- CWE-787 - Out-of-bounds Write
Assigner
References
1 reference
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CVE-2023-30088 (GCVE-0-2023-30088)
Vulnerability from cvelistv5 – Published: 2023-05-09 00:00 – Updated: 2025-01-29 20:38
VLAI
EPSS
VEX
Summary
An issue found in Cesanta MJS v.1.26 allows a local attacker to cause a denial of service via the mjs_execute function in mjs.c.
Severity
5.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-01-29 20:37 UTC
CWE
- n/a
Assigner
References
1 reference
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CVE-2023-29570 (GCVE-0-2023-29570)
Vulnerability from cvelistv5 – Published: 2023-04-24 00:00 – Updated: 2025-02-04 16:20
VLAI
EPSS
VEX
Summary
Cesanta MJS v2.20.0 was discovered to contain a SEGV vulnerability via mjs_ffi_cb_free at src/mjs_ffi.c. This vulnerability can lead to a Denial of Service (DoS).
Severity
5.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-04 16:17 UTC
CWE
- n/a
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
2 references
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CVE-2023-29569 (GCVE-0-2023-29569)
Vulnerability from cvelistv5 – Published: 2023-04-14 00:00 – Updated: 2025-02-06 21:20
VLAI
EPSS
VEX
Summary
Cesanta MJS v2.20.0 was discovered to contain a SEGV vulnerability via ffi_cb_impl_wpwwwww at src/mjs_ffi.c. This vulnerability can lead to a Denial of Service (DoS).
Severity
5.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-06 21:19 UTC
CWE
- n/a
- CWE-476 - NULL Pointer Dereference
Assigner
References
2 references
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