Search
Find a vulnerability
Search criteria
4 vulnerabilities by quozl
CVE-2026-121969 (GCVE-0-2026-121969)
Vulnerability from nvd – Published: 2026-11-04 20:36 – Updated: 2026-11-04 20:36
VLAI
EPSS
VEX
Title
netrek-client-cow through 3.3.3 Stack Buffer Overflow via handleSMessage
Summary
netrek-client-cow through 3.3.3 contains a stack-based buffer overflow vulnerability in handleSMessage() in short.c that allows malicious servers to overflow a 100-byte stack buffer by sending oversized SP_S_MESSAGE packets. A malicious Netrek server or man-in-the-middle on the plaintext TCP connection can send overlong or unterminated message bodies to write server-controlled bytes onto the stack and crash the client.
Severity
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/quozl/netrek-client-cow/commit… | patch |
| https://github.com/quozl/netrek-client-cow | product |
| https://github.com/quozl/netrek-client-cow/blob/3… | technical-description |
| https://github.com/quozl/netrek-client-cow/issues/11 | issue-tracking |
| https://www.vulncheck.com/advisories/netrek-clien… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| quozl | netrek-client-cow |
Affected:
0 , ≤ 3.3.3
(custom)
|
Date Public
2026-11-03 00:00
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "netrek-client-cow",
"vendor": "quozl",
"versions": [
{
"lessThanOrEqual": "3.3.3",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Deus Rex"
},
{
"lang": "en",
"type": "remediation developer",
"value": "James Cameron"
}
],
"datePublic": "2026-11-03T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "netrek-client-cow through 3.3.3 contains a stack-based buffer overflow vulnerability in handleSMessage() in short.c that allows malicious servers to overflow a 100-byte stack buffer by sending oversized SP_S_MESSAGE packets. A malicious Netrek server or man-in-the-middle on the plaintext TCP connection can send overlong or unterminated message bodies to write server-controlled bytes onto the stack and crash the client."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "PASSIVE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE"
},
"format": "CVSS"
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-121",
"description": "Stack-based Buffer Overflow",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-11-04T20:36:47.609Z",
"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"shortName": "VulnCheck"
},
"references": [
{
"name": "Patch Commit",
"tags": [
"patch"
],
"url": "https://github.com/quozl/netrek-client-cow/commit/fb322e74abee3b0b76a9c5a31df6aab5585d3127"
},
{
"tags": [
"product"
],
"url": "https://github.com/quozl/netrek-client-cow"
},
{
"tags": [
"technical-description"
],
"url": "https://github.com/quozl/netrek-client-cow/blob/3.3.3/short.c#L949"
},
{
"tags": [
"issue-tracking"
],
"url": "https://github.com/quozl/netrek-client-cow/issues/11"
},
{
"name": "VulnCheck Advisory: netrek-client-cow through 3.3.3 Stack Buffer Overflow via handleSMessage",
"tags": [
"third-party-advisory"
],
"url": "https://www.vulncheck.com/advisories/netrek-client-cow-through-3.3.3-stack-buffer-overflow-via-handlesmessage"
}
],
"title": "netrek-client-cow through 3.3.3 Stack Buffer Overflow via handleSMessage",
"x_generator": {
"engine": "vulncheck-endgame"
}
}
},
"cveMetadata": {
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"assignerShortName": "VulnCheck",
"cveId": "CVE-2026-121969",
"datePublished": "2026-11-04T20:36:47.609Z",
"dateReserved": "2026-11-04T12:48:39.813Z",
"dateUpdated": "2026-11-04T20:36:47.609Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-121968 (GCVE-0-2026-121968)
Vulnerability from nvd – Published: 2026-11-04 20:36 – Updated: 2026-11-04 20:36
VLAI
EPSS
VEX
Title
Netrek-client-cow through 3.3.3 Out-of-Bounds Read via SP_S_MESSAGE Packets
Summary
Netrek-client-cow through 3.3.3 contains an out-of-bounds read vulnerability in short.c handleSMessage() that allows malicious servers to crash clients via an unchecked m_recpt index. Attackers controlling a Netrek server or intercepting the plaintext TCP connection can send SP_S_MESSAGE packets with m_recpt of 36 or more, reading past players[] and shipnos to deny service.
Severity
CWE
- CWE-129 - Improper Validation of Array Index
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/quozl/netrek-client-cow/commit… | patch |
| https://github.com/quozl/netrek-client-cow | product |
| https://github.com/quozl/netrek-client-cow/blob/3… | technical-description |
| https://www.vulncheck.com/advisories/netrek-clien… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| quozl | netrek-client-cow |
Affected:
0 , ≤ 3.3.3
(custom)
|
Date Public
2026-11-03 00:00
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "netrek-client-cow",
"vendor": "quozl",
"versions": [
{
"lessThanOrEqual": "3.3.3",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Deus Rex"
},
{
"lang": "en",
"type": "remediation developer",
"value": "James Cameron"
}
],
"datePublic": "2026-11-03T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "Netrek-client-cow through 3.3.3 contains an out-of-bounds read vulnerability in short.c handleSMessage() that allows malicious servers to crash clients via an unchecked m_recpt index. Attackers controlling a Netrek server or intercepting the plaintext TCP connection can send SP_S_MESSAGE packets with m_recpt of 36 or more, reading past players[] and shipnos to deny service."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "PASSIVE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE"
},
"format": "CVSS"
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-129",
"description": "Improper Validation of Array Index",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-11-04T20:36:46.892Z",
"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"shortName": "VulnCheck"
},
"references": [
{
"name": "Patch Commit",
"tags": [
"patch"
],
"url": "https://github.com/quozl/netrek-client-cow/commit/fb322e74abee3b0b76a9c5a31df6aab5585d3127"
},
{
"tags": [
"product"
],
"url": "https://github.com/quozl/netrek-client-cow"
},
{
"tags": [
"technical-description"
],
"url": "https://github.com/quozl/netrek-client-cow/blob/3.3.3/short.c#L942-L943"
},
{
"name": "VulnCheck Advisory: Netrek-client-cow through 3.3.3 Out-of-Bounds Read via SP_S_MESSAGE Packets",
"tags": [
"third-party-advisory"
],
"url": "https://www.vulncheck.com/advisories/netrek-client-cow-through-3.3.3-out-of-bounds-read-via-sp-s-message-packets"
}
],
"title": "Netrek-client-cow through 3.3.3 Out-of-Bounds Read via SP_S_MESSAGE Packets",
"x_generator": {
"engine": "vulncheck-endgame"
}
}
},
"cveMetadata": {
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"assignerShortName": "VulnCheck",
"cveId": "CVE-2026-121968",
"datePublished": "2026-11-04T20:36:46.892Z",
"dateReserved": "2026-11-04T12:48:39.813Z",
"dateUpdated": "2026-11-04T20:36:46.892Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-121969 (GCVE-0-2026-121969)
Vulnerability from cvelistv5 – Published: 2026-11-04 20:36 – Updated: 2026-11-04 20:36
VLAI
EPSS
VEX
Title
netrek-client-cow through 3.3.3 Stack Buffer Overflow via handleSMessage
Summary
netrek-client-cow through 3.3.3 contains a stack-based buffer overflow vulnerability in handleSMessage() in short.c that allows malicious servers to overflow a 100-byte stack buffer by sending oversized SP_S_MESSAGE packets. A malicious Netrek server or man-in-the-middle on the plaintext TCP connection can send overlong or unterminated message bodies to write server-controlled bytes onto the stack and crash the client.
Severity
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/quozl/netrek-client-cow/commit… | patch |
| https://github.com/quozl/netrek-client-cow | product |
| https://github.com/quozl/netrek-client-cow/blob/3… | technical-description |
| https://github.com/quozl/netrek-client-cow/issues/11 | issue-tracking |
| https://www.vulncheck.com/advisories/netrek-clien… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| quozl | netrek-client-cow |
Affected:
0 , ≤ 3.3.3
(custom)
|
Date Public
2026-11-03 00:00
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "netrek-client-cow",
"vendor": "quozl",
"versions": [
{
"lessThanOrEqual": "3.3.3",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Deus Rex"
},
{
"lang": "en",
"type": "remediation developer",
"value": "James Cameron"
}
],
"datePublic": "2026-11-03T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "netrek-client-cow through 3.3.3 contains a stack-based buffer overflow vulnerability in handleSMessage() in short.c that allows malicious servers to overflow a 100-byte stack buffer by sending oversized SP_S_MESSAGE packets. A malicious Netrek server or man-in-the-middle on the plaintext TCP connection can send overlong or unterminated message bodies to write server-controlled bytes onto the stack and crash the client."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "PASSIVE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE"
},
"format": "CVSS"
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-121",
"description": "Stack-based Buffer Overflow",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-11-04T20:36:47.609Z",
"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"shortName": "VulnCheck"
},
"references": [
{
"name": "Patch Commit",
"tags": [
"patch"
],
"url": "https://github.com/quozl/netrek-client-cow/commit/fb322e74abee3b0b76a9c5a31df6aab5585d3127"
},
{
"tags": [
"product"
],
"url": "https://github.com/quozl/netrek-client-cow"
},
{
"tags": [
"technical-description"
],
"url": "https://github.com/quozl/netrek-client-cow/blob/3.3.3/short.c#L949"
},
{
"tags": [
"issue-tracking"
],
"url": "https://github.com/quozl/netrek-client-cow/issues/11"
},
{
"name": "VulnCheck Advisory: netrek-client-cow through 3.3.3 Stack Buffer Overflow via handleSMessage",
"tags": [
"third-party-advisory"
],
"url": "https://www.vulncheck.com/advisories/netrek-client-cow-through-3.3.3-stack-buffer-overflow-via-handlesmessage"
}
],
"title": "netrek-client-cow through 3.3.3 Stack Buffer Overflow via handleSMessage",
"x_generator": {
"engine": "vulncheck-endgame"
}
}
},
"cveMetadata": {
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"assignerShortName": "VulnCheck",
"cveId": "CVE-2026-121969",
"datePublished": "2026-11-04T20:36:47.609Z",
"dateReserved": "2026-11-04T12:48:39.813Z",
"dateUpdated": "2026-11-04T20:36:47.609Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-121968 (GCVE-0-2026-121968)
Vulnerability from cvelistv5 – Published: 2026-11-04 20:36 – Updated: 2026-11-04 20:36
VLAI
EPSS
VEX
Title
Netrek-client-cow through 3.3.3 Out-of-Bounds Read via SP_S_MESSAGE Packets
Summary
Netrek-client-cow through 3.3.3 contains an out-of-bounds read vulnerability in short.c handleSMessage() that allows malicious servers to crash clients via an unchecked m_recpt index. Attackers controlling a Netrek server or intercepting the plaintext TCP connection can send SP_S_MESSAGE packets with m_recpt of 36 or more, reading past players[] and shipnos to deny service.
Severity
CWE
- CWE-129 - Improper Validation of Array Index
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/quozl/netrek-client-cow/commit… | patch |
| https://github.com/quozl/netrek-client-cow | product |
| https://github.com/quozl/netrek-client-cow/blob/3… | technical-description |
| https://www.vulncheck.com/advisories/netrek-clien… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| quozl | netrek-client-cow |
Affected:
0 , ≤ 3.3.3
(custom)
|
Date Public
2026-11-03 00:00
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "netrek-client-cow",
"vendor": "quozl",
"versions": [
{
"lessThanOrEqual": "3.3.3",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Deus Rex"
},
{
"lang": "en",
"type": "remediation developer",
"value": "James Cameron"
}
],
"datePublic": "2026-11-03T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "Netrek-client-cow through 3.3.3 contains an out-of-bounds read vulnerability in short.c handleSMessage() that allows malicious servers to crash clients via an unchecked m_recpt index. Attackers controlling a Netrek server or intercepting the plaintext TCP connection can send SP_S_MESSAGE packets with m_recpt of 36 or more, reading past players[] and shipnos to deny service."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "PASSIVE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE"
},
"format": "CVSS"
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-129",
"description": "Improper Validation of Array Index",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-11-04T20:36:46.892Z",
"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"shortName": "VulnCheck"
},
"references": [
{
"name": "Patch Commit",
"tags": [
"patch"
],
"url": "https://github.com/quozl/netrek-client-cow/commit/fb322e74abee3b0b76a9c5a31df6aab5585d3127"
},
{
"tags": [
"product"
],
"url": "https://github.com/quozl/netrek-client-cow"
},
{
"tags": [
"technical-description"
],
"url": "https://github.com/quozl/netrek-client-cow/blob/3.3.3/short.c#L942-L943"
},
{
"name": "VulnCheck Advisory: Netrek-client-cow through 3.3.3 Out-of-Bounds Read via SP_S_MESSAGE Packets",
"tags": [
"third-party-advisory"
],
"url": "https://www.vulncheck.com/advisories/netrek-client-cow-through-3.3.3-out-of-bounds-read-via-sp-s-message-packets"
}
],
"title": "Netrek-client-cow through 3.3.3 Out-of-Bounds Read via SP_S_MESSAGE Packets",
"x_generator": {
"engine": "vulncheck-endgame"
}
}
},
"cveMetadata": {
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"assignerShortName": "VulnCheck",
"cveId": "CVE-2026-121968",
"datePublished": "2026-11-04T20:36:46.892Z",
"dateReserved": "2026-11-04T12:48:39.813Z",
"dateUpdated": "2026-11-04T20:36:46.892Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}