CVE-2025-15684 (GCVE-0-2025-15684)
Vulnerability from cvelistv5 – Published: 2026-08-12 02:00 – Updated: 2026-08-12 02:00 X_Open Source
VLAI
EPSS
VEX
Title
Open5GS CER init.c diam_log_func assertion
Summary
A vulnerability was detected in Open5GS up to 2.7.6. Affected is the function diam_log_func of the file lib/diameter/common/init.c of the component CER Handler. The manipulation results in reachable assertion. The attack can be executed remotely. The exploit is now public and may be used. Upgrading to version 2.7.7 is able to address this issue. The patch is identified as c1a803516a3c0485696cb9bcca7a80ad857c7383. It is advisable to upgrade the affected component.
Severity
CWE
- CWE-617 - Reachable Assertion
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/387277 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/387277/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2025-15684 | third-party-advisory |
| https://vuldb.com/submit/867102 | third-party-advisory |
| https://github.com/open5gs/open5gs/issues/4155 | exploitissue-tracking |
| https://github.com/open5gs/open5gs/commit/c1a8035… | patch |
| https://github.com/open5gs/open5gs/releases/tag/v2.7.7 | patch |
| https://github.com/open5gs/open5gs/ | product |
Impacted products
{
"containers": {
"cna": {
"affected": [
{
"cpes": [
"cpe:2.3:a:open5gs:open5gs:*:*:*:*:*:*:*:*"
],
"modules": [
"CER Handler"
],
"product": "Open5GS",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "2.7.0"
},
{
"status": "affected",
"version": "2.7.1"
},
{
"status": "affected",
"version": "2.7.2"
},
{
"status": "affected",
"version": "2.7.3"
},
{
"status": "affected",
"version": "2.7.4"
},
{
"status": "affected",
"version": "2.7.5"
},
{
"status": "affected",
"version": "2.7.6"
},
{
"status": "unaffected",
"version": "2.7.7"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "WeiYi (VulDB User)"
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability was detected in Open5GS up to 2.7.6. Affected is the function diam_log_func of the file lib/diameter/common/init.c of the component CER Handler. The manipulation results in reachable assertion. The attack can be executed remotely. The exploit is now public and may be used. Upgrading to version 2.7.7 is able to address this issue. The patch is identified as c1a803516a3c0485696cb9bcca7a80ad857c7383. It is advisable to upgrade the affected component."
}
],
"metrics": [
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"baseSeverity": "MEDIUM",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P",
"version": "4.0"
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C",
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],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-617",
"description": "Reachable Assertion",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-12T02:00:10.119Z",
"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"shortName": "VulDB"
},
"references": [
{
"name": "VDB-387277 | Open5GS CER init.c diam_log_func assertion",
"tags": [
"vdb-entry",
"technical-description"
],
"url": "https://vuldb.com/vuln/387277"
},
{
"name": "VDB-387277 | CTI Indicators (IOB, IOC, IOA)",
"tags": [
"signature",
"permissions-required"
],
"url": "https://vuldb.com/vuln/387277/cti"
},
{
"name": "CVE-2025-15684 | CVE Analysis and Report",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/cve/CVE-2025-15684"
},
{
"name": "Submit #867102 | Open5GS v2.7.6-103-g1c1d9e1 Denial of Service",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/submit/867102"
},
{
"tags": [
"exploit",
"issue-tracking"
],
"url": "https://github.com/open5gs/open5gs/issues/4155"
},
{
"tags": [
"patch"
],
"url": "https://github.com/open5gs/open5gs/commit/c1a803516a3c0485696cb9bcca7a80ad857c7383"
},
{
"tags": [
"patch"
],
"url": "https://github.com/open5gs/open5gs/releases/tag/v2.7.7"
},
{
"tags": [
"product"
],
"url": "https://github.com/open5gs/open5gs/"
}
],
"tags": [
"x_open-source"
],
"timeline": [
{
"lang": "en",
"time": "2026-08-09T00:00:00.000Z",
"value": "Advisory disclosed"
},
{
"lang": "en",
"time": "2026-08-09T02:00:00.000Z",
"value": "VulDB entry created"
},
{
"lang": "en",
"time": "2026-08-09T19:49:34.000Z",
"value": "VulDB entry last update"
}
],
"title": "Open5GS CER init.c diam_log_func assertion",
"x_generator": [
"VulDB PVTS v202608"
]
}
},
"cveMetadata": {
"assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"assignerShortName": "VulDB",
"cveId": "CVE-2025-15684",
"datePublished": "2026-08-12T02:00:10.119Z",
"dateReserved": "2026-08-09T17:44:28.777Z",
"dateUpdated": "2026-08-12T02:00:10.119Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2025-15684",
"date": "2026-08-12",
"epss": "0.0071",
"percentile": "0.50269"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2025-15684\",\"sourceIdentifier\":\"cna@vuldb.com\",\"published\":\"2026-08-12T03:16:41.210\",\"lastModified\":\"2026-08-12T20:59:21.023\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A vulnerability was detected in Open5GS up to 2.7.6. Affected is the function diam_log_func of the file lib/diameter/common/init.c of the component CER Handler. The manipulation results in reachable assertion. The attack can be executed remotely. The exploit is now public and may be used. Upgrading to version 2.7.7 is able to address this issue. The patch is identified as c1a803516a3c0485696cb9bcca7a80ad857c7383. It is advisable to upgrade the affected component.\"}],\"affected\":[{\"source\":\"cna@vuldb.com\",\"affectedData\":[{\"vendor\":\"n/a\",\"product\":\"Open5GS\",\"cpes\":[\"cpe:2.3:a:open5gs:open5gs:*:*:*:*:*:*:*:*\"],\"modules\":[\"CER Handler\"],\"versions\":[{\"version\":\"2.7.0\",\"status\":\"affected\"},{\"version\":\"2.7.1\",\"status\":\"affected\"},{\"version\":\"2.7.2\",\"status\":\"affected\"},{\"version\":\"2.7.3\",\"status\":\"affected\"},{\"version\":\"2.7.4\",\"status\":\"affected\"},{\"version\":\"2.7.5\",\"status\":\"affected\"},{\"version\":\"2.7.6\",\"status\":\"affected\"},{\"version\":\"2.7.7\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"NONE\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"NONE\",\"vulnIntegrityImpact\":\"NONE\",\"vulnAvailabilityImpact\":\"LOW\",\"subConfidentialityImpact\":\"NONE\",\"subIntegrityImpact\":\"NONE\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"PROOF_OF_CONCEPT\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}],\"cvssMetricV31\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L\",\"baseScore\":5.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":3.9,\"impactScore\":1.4}],\"cvssMetricV2\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:N/I:N/A:P\",\"baseScore\":5.0,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":10.0,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-617\"}]}],\"references\":[{\"url\":\"https://github.com/open5gs/open5gs/\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://github.com/open5gs/open5gs/commit/c1a803516a3c0485696cb9bcca7a80ad857c7383\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://github.com/open5gs/open5gs/issues/4155\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://github.com/open5gs/open5gs/releases/tag/v2.7.7\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://vuldb.com/cve/CVE-2025-15684\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://vuldb.com/submit/867102\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://vuldb.com/vuln/387277\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://vuldb.com/vuln/387277/cti\",\"source\":\"cna@vuldb.com\"}]}}"
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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