Evidence used
- No CISA KEV confirmation is currently recorded.
- EPSS is 0.19% for the current model date.
BlackTreeCVE IntelligenceFull vulnerability report · 2026
CVE-2026-25289High confidence
Stack-based Buffer Overflow in WLAN Firmware
Qualcomm, Inc. · Snapdragon
9.6CriticalCVSS 3.1
Within 7 days
Fix not verifiedCritical technical severity; prioritise exposed affected systems while verifying vendor guidance.
R
Open reassessment dashboard →Operational reassessment
Published severity in operational context
Published severityCritical→Operational priority:Critical, unchanged from published severity.unchanged
Compensating controls
- Restrict local access and enforce least privilege on affected hosts.
- Monitor vendor guidance and exploitation sources for a material change.
Verification
- Confirm that the asset runs Qualcomm, Inc. Snapdragon and falls inside the recorded affected range.
- Recheck the vendor advisory before scheduling a change because no verified fixed version is currently retained.
- Validate exposure, authentication requirements and compensating controls in the actual environment.
- Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Critical technical severity; prioritise exposed affected systems while verifying vendor guidance.
Fix not verified01
What, why and how
Memory Corruption when processing Device Capability Extended attributes in certain NAN Service Discovery Frames with invalid length values.
What
Memory Corruption when processing Device Capability Extended attributes in certain NAN Service Discovery Frames with invalid length values.
Why
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
How
An attacker operating through an adjacent network may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.
What
Memory Corruption when processing Device Capability Extended attributes in certain NAN Service Discovery Frames with invalid length values.
Why
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
How
An attacker operating through an adjacent network may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.
02
Exploit reality and attack path
CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.
Observed exploitation No confirmed evidence
?
Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.
Public PoC / exploit material None recorded
?
Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.
- Likely attack path
- an adjacent network → Stack-based Buffer Overflow → cause the confidentiality, integrity or availability impact described by the vendor
- Attack surface
- Adjacent
- Privileges required
- None: unauthenticated exploitation is possible
- User interaction
- None
- Attack complexity
- Low: no specialised conditions are recorded
- Security boundary
- Changed: exploitation can affect a different security authority
- Weakness
?
CWE means Common Weakness Enumeration: a standard category for the underlying weakness. - CWE-121 ↗
CWE-121: Stack-based Buffer Overflow. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
- CVSS vector
?
CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity. CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:HCommon Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.
AVAdjacentAttack vector: The attacker must be on an adjacent or logically close network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.SChangedScope: The attack can affect a component governed by a different security authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.- Post-exploitation / living off the land
- No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
03
Patch and workaround
Operational remediation based on structured source evidence.
- Status
?
Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change. - Fix not verified
- Affected
- Snapdragon: AR8035, Cologne, CQ7790, CQ8725S, CQ8750M, FastConnect 6200, FastConnect 6700, FastConnect 6800, FastConnect 6900, FastConnect 7800, FWA Gen 3 Ultra Platform, FWA Gen 5 Elite Platform, G2 Gen 1, Immersive Home 3210 Platform, Immersive Home 326 Platform, IPQ5300, IPQ5302, IPQ5312, IPQ5332, IPQ9554, IPQ9570, IPQ9574, IQ10 Series, IQX5121, IQX7181, Kobuk, LeMans_AU_LGIT, LeMansAU, Milos, Milos_IOT, Networking Pro 1210 Platform, Networking Pro 1610 Platform, Networking Pro 610 Platform, Networking Pro 810 Platform, Orne, Palawan25, Pandeiro, QAM8255P, QAM8397P, QAM8797P, QAMSRV1H, QAMSRV1M, QCA0000, QCA6391, QCA6426, QCA6436, QCA6554A, QCA6564AU, QCA6574, QCA6574A, QCA6574AU, QCA6584AU, QCA6595, QCA6595AU, QCA6678AQ, QCA6688AQ, QCA6696, QCA6698AQ, QCA6698AU, QCA6777AQ, QCA6787AQ, QCA6797AQ, QCA8075, QCA8081, QCA8337, QCA8386, QCA8695AU, QCC2073, QCC2076, QCC710, QCF8000, QCF8001, QCM8550, QCM8838, QCN5124, QCN6224, QCN6274, QCN6402, QCN6412, QCN6422, QCN6432, QCN9011, QCN9012, QCN9274, QCS6690, QCS8550, QFW7114, QFW7124, QLN1083BD, QLN1086BD, QMB715, QMP1000, QPA1083BD, QPA1086BD, QXM1083, QXM1086, QXM1093, QXM1094, QXM1095, QXM1096, SA7255P, SA7775P, SA8255P, SA8620P, SA8770P, SA9000P, SAR1165P, SAR2130P, SC8380XP, SD 8 Gen1 5G, SD865 5G, SDR753, SDX81, SM6650P, SM7635P, SM7675, SM7675P, SM8550P, SM8635, SM8635P, SM8650Q, SM8750P, Snapdragon 6 Gen 4 Mobile Platform, Snapdragon 7 Gen 4 Mobile Platform, Snapdragon 7s Gen 3 Mobile Platform, Snapdragon 8 Elite, Snapdragon 8 Elite Gen 5, Snapdragon 8 Gen 1 Mobile Platform, Snapdragon 8 Gen 2 Mobile Platform, Snapdragon 8 Gen 3 Mobile Platform, Snapdragon 8+ Gen 2 Mobile Platform, Snapdragon 865 5G Mobile Platform, Snapdragon 865+ 5G Mobile Platform, Snapdragon 870 5G Mobile Platform, Snapdragon AR1 Gen 1 Platform, Snapdragon AR1+ Gen 1 Platform, Snapdragon Auto 5G Modem-RF Gen 2, Snapdragon X72 5G Modem-RF System, Snapdragon X75 5G Modem-RF System, Snapdragon XR2 5G Platform, Snapdragon Wear Elite platform, SRV1H, SRV1M, SSG2115P, SSG2125P, SXR1230P, SXR2230P, SXR2250P, SXR2330P, SXR2350P, Themisto, WCD9340, WCD9370, WCD9375, WCD9378, WCD9378C, WCD9380, WCD9385, WCD9390, WCD9395, WCN3988, WCN6450, WCN6650, WCN6740, WCN6755, WCN7860, WCN7861, WCN7880, WCN7881, WSA8810, WSA8815, WSA8830, WSA8832, WSA8835, WSA8840, WSA8845, WSA8845H, X1E80100, X2000077, X2000086, X2000090, X2000092, X2000094, XG101002, XG101032, XG101039, XRV7209, XRV9209
- Fixed
- No fixed version is explicitly recorded in the structured CVE data.
- Action
- No verified patch reference is present in the current structured sources. Check the vendor advisory before making a change.
- Workaround
- No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
04
Evidence and provenance
Published 4 Aug 2026 · Last source change 5 Aug 2026, 03:56 UTC · CWE-121 · Stack-based Buffer Overflow
CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source FIRST · tracked since 2026-08-14
?
The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.European sourceENISA EUVD · EUVD-2026-52737
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceCNA
NVD statusNVD enriched
Core structured fields are present and their contributing authorities are shown above.
Material change intelligence
View recent updates ↗What changed after publication
No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.
Technical terms and abbreviations used in this report
- CVE
- Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
- CVSS
- Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
- EPSS
- Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
- CWE
- Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
- CNA
- CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
- CISA ADP
- Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
- NVD
- National Vulnerability Database: NIST's enrichment service for CVE records.
- CERT / CSIRT
- A computer security incident response team that publishes warnings or coordinates incident response.
- PoC
- Proof of concept: public material that demonstrates or helps reproduce exploitation.
- CSAF
- Common Security Advisory Framework: a machine-readable format for security advisories.
- LoTL
- Living off the land: abuse of legitimate tools or system functions during an attack.