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CVE-2015-6305· NVD / CVE Program· CNA cisco

Untrusted search path vulnerability in the CMainThread::launchDownloader function in vpndownloader.exe in Cisco AnyConnect Secure Mobility C

Untrusted search path vulnerability in the CMainThread::launchDownloader function in vpndownloader.exe in Cisco AnyConnect Secure Mobility Client 2.0 through 4.1 on Windows allows local users to gain privileges via a Trojan horse DLL in the current working directory, as demonstrated by dbghelp.dll, aka Bug ID CSCuv01279. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-4211.

HighCVSS 7.2 · v2.0—Proof of concept No fix recorded
Published
Sep 25, 2015
Updated
Jun 16, 2026
EPSS
1.2% · 67th percentile
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JSON

Action score

28

Monitor

Low priority for now.

CVSS
28 / 40 · 7.2 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.2%

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

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Affected systems

VendorProduct
ciscoanyconnect secure mobility client
microsoftwindows

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Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • cisco anyconnect secure mobility client2.0.0343
  • cisco anyconnect secure mobility client2.1.0.148
  • cisco anyconnect secure mobility client2.2.0133
  • cisco anyconnect secure mobility client2.2.0136
  • cisco anyconnect secure mobility client2.2.0140
  • cisco anyconnect secure mobility client2.3.0185
  • cisco anyconnect secure mobility client2.3.0254
  • cisco anyconnect secure mobility client2.3.1003
  • cisco anyconnect secure mobility client2.3.2016
  • cisco anyconnect secure mobility client2.4.0202
  • cisco anyconnect secure mobility client2.4.1012
  • cisco anyconnect secure mobility client2.5_base
  • cisco anyconnect secure mobility client2.5.0217
  • cisco anyconnect secure mobility client2.5.2006
  • cisco anyconnect secure mobility client2.5.2010
  • cisco anyconnect secure mobility client2.5.2011
  • cisco anyconnect secure mobility client2.5.2014
  • cisco anyconnect secure mobility client2.5.2017
  • cisco anyconnect secure mobility client2.5.2018
  • cisco anyconnect secure mobility client2.5.2019

Same product

cisco: all records

Other highest-scoring records for the same primary product.

  • CVE-2020-3433Cisco AnyConnect Secure Mobility Client for Windows DLL Hijacking VulnerabilityKEV
    64This week
  • CVE-2020-3153Cisco AnyConnect Secure Mobility Client for Windows Uncontrolled Search Path VulnerabilityKEV
    64This week
  • CVE-2011-2039The helper application in Cisco AnyConnect Secure Mobility Client (formerly AnyConnect VPN Client) before 2.3.185 on Windows, and on Windows
    51Plan
  • CVE-2011-2040The helper application in Cisco AnyConnect Secure Mobility Client (formerly AnyConnect VPN Client) before 2.5.3041, and 3.0.x before 3.0.629
    40Plan
  • CVE-2012-3088Cisco AnyConnect Secure Mobility Client 3.1.x before 3.1.00495, and 3.2.x, does not check whether an HTTP request originally contains ScanSa
    38Monitor
  • CVE-2012-2493The VPN downloader implementation in the WebLaunch feature in Cisco AnyConnect Secure Mobility Client 2.x before 2.5 MR6 on Windows, and 2.x
    38Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Exploit-DB entry ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Exploit-DB entrylocal2015-09-22

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. First PoC-4 d
  2. Published
  3. TodayOct 6, 2026+4028 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • No special conditions are required; it is repeatable.

If successful

Confidentiality
C · data can be read
Integrity
C · data or configuration can be modified
Availability
C · the service can be disrupted
Attack complexity
Low
Confidentiality impact
C
Integrity impact
C
Availability impact
C

Weakness class (CWE)

CWE-426 · Untrusted Search Path

CVSS vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records