The IPC channel in Cisco AnyConnect Secure Mobility Client 4.0(.00051) and earlier allows local users to write to arbitrary userspace memory locations, and consequently gain privileges, via crafted messages, aka Bug ID CSCus79195.
CVE-2015-0664
MEDIUMCVSS v2 · 4.34.3—
EchelonGraph scoreLOW confidence
This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 4.3 — v2 rates that MEDIUM (v2 bands: LOW 0.0–3.9 / MEDIUM 4.0–6.9 / HIGH 7.0–10.0; v2 has no CRITICAL band). Vector AV:L/AC:L/Au:S/C:P/I:P/A:P. CVSS v2 is an older, coarser metric than v3.1/v4.0 (no Scope, no User Interaction, no Attack Requirements), so it is not directly comparable to a v3 or v4 score. NVD has never re-scored this record under v3. EPSS predicts 0.3% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.
Sources: epss, nvd_v2
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS v2: 4.3Exploit: None knownExposed services: —
Fix status could not be loaded just now — check the vendor's advisory; until a fix is applied, use a compensating control (WAF / firewall / segmentation).
Internet exposure
The internet-exposure footprint is temporarily unavailable — the KEV-Exposure radar's record for this CVE could not be loaded just now. That is not a finding of zero exposed services; please retry shortly.
- CVSS v2.0 (legacy)
- 4.3MEDIUMNVD never assigned a CVSS v3 rating to this CVE
- EG Score
- 4.3MEDIUMlow confidence
- EG Risk
- 24EG Risk 24/100CISA SSVC
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity43% × 45%Exploitation0% × 40%Automatability30% × 15%CISA SSVC: Track at low or medium mission impact; Track or Track* or Attend at high (mission-essential systems).Action: The fix status could not be loaded just now. Check the vendor's advisory for a fixed version and apply it within your standard update timelines at low or medium mission impact and sooner than that at high; if none is published, restrict network exposure of the affected system or apply the vendor's mitigation. - EPSS PROB
- 0.3%
- EPSS %ILE
- 22nd
- KEV
- Not listed
CISA SSVCTrack at low or medium mission impact; Track or Track* or Attend at high (mission-essential systems).
The fix status could not be loaded just now. Check the vendor's advisory for a fixed version and apply it within your standard update timelines at low or medium mission impact and sooner than that at high; if none is published, restrict network exposure of the affected system or apply the vendor's mitigation.
Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact unknown (not published for this CVE). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table
Published
March 18, 2015
Last Modified
May 6, 2026
Advisory Details
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References (4)
- psirt@ciscohttp://tools.cisco.com/security/center/viewAlert.x?alertId=37861
- psirt@ciscohttp://www.securitytracker.com/id/1031932
- af854a3a-2127-422b-91ae-364da2661108http://tools.cisco.com/security/center/viewAlert.x?alertId=37861
- af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1031932
Vendor Advisories for CVE-2015-0664
Vendor advisories for this CVE are temporarily unavailable — the list could not be loaded just now. That is not a sign that none exist; please retry shortly.
Related CVEs(same CWE)· as of October 4, 2026
Frequently asked(4)
What is CVE-2015-0664?
CVE-2015-0664 is a medium vulnerability published on March 18, 2015. The IPC channel in Cisco AnyConnect Secure Mobility Client 4.0(.00051) and earlier allows local users to write to arbitrary userspace memory locations, and consequently gain privileges, via crafted messages, aka Bug ID CSCus79195.
When was CVE-2015-0664 disclosed?
CVE-2015-0664 was first published on March 18, 2015, with the most recent update on May 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2015-0664 actively exploited?
CVE-2015-0664 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (22nd percentile of EPSS-scored CVEs).
How do I remediate CVE-2015-0664?
EchelonGraph could not load the fix status for CVE-2015-0664 just now. Check the vendor's advisory for a fixed version; if none is published, restrict network exposure of the affected system or apply the vendor's mitigation until one is.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2015-0664
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