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CVE-2011-3478· NVD / CVE Program· CNA mitre

The host-services component in Symantec pcAnywhere 12.5.x through 12.5.3, and IT Management Suite pcAnywhere Solution 7.0 (aka 12.5.x) and 7

The host-services component in Symantec pcAnywhere 12.5.x through 12.5.3, and IT Management Suite pcAnywhere Solution 7.0 (aka 12.5.x) and 7.1 (aka 12.6.x), does not properly filter login and authentication data, which allows remote attackers to execute arbitrary code via a crafted session on TCP port 5631.

CriticalCVSS 10.0 · v2.0—Proof of concept No fix recorded
Published
Jan 25, 2012
Updated
Jun 16, 2026
EPSS
39.5% · 99th percentile
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Report tools

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Action score

52

Plan

Add it to your regular patch cycle.

CVSS
40 / 40 · 10.0 / 10
CISA KEV
0 / 30 · Not listed
EPSS
12 / 30 · 39.5%

Affected systems

VendorProduct
symantecpcanywhere

Affected versions

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

  • symantec pcanywhere12.5
  • symantec pcanywhere12.5.539
  • symantec pcanywhere12.6.65
  • symantec pcanywhere12.6.7580

Same product

symantec: all records

Other highest-scoring records for the same primary product.

  • CVE-2000-0300The default encryption method of PcAnywhere 9.x uses weak encryption, which allows remote attackers to sniff and decrypt PcAnywhere or NT do
    42Plan
  • CVE-2012-0290Symantec pcAnywhere through 12.5.3, Altiris IT Management Suite pcAnywhere Solution 7.0 (aka 12.5.x) and 7.1 (aka 12.6.x), Altiris Client Ma
    41Plan
  • CVE-2005-3934Buffer overflow in Symantec pcAnywhere 11.0.1, 11.5.1, and all other 32-bit versions allows remote attackers to cause a denial of service (a
    34Monitor
  • CVE-2006-3784Symantec pcAnywhere 12.5 uses weak default permissions for the "Symantec\pcAnywhere\Hosts" folder, which allows local users to gain privileg
    28Monitor
  • CVE-2005-1970Symantec pcAnywhere 10.5x and 11.x before 11.5, with "Launch with Windows" enabled, allows local users with physical access to execute arbit
    28Monitor
  • CVE-2003-0936Symantec PCAnywhere 10.x and 11, when started as a service, allows attackers to gain SYSTEM privileges via the help interface using AWHOST32
    28Monitor

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 ×2

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 entryremote2012-06-27
Exploit-DB entryremote2015-11-02

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. Published
  2. First PoC+154 d
  3. TodaySep 30, 2026+5362 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-287 · Improper Authentication

CVSS vector

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

nvd-primary

Root cause

Authentication is added route by route instead of being enforced in one place. When a route added later bypasses the shared middleware, the session check never runs for it.

The bug in code

The whole CWE-287 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

ts
app.use("/admin", requireSession, adminRouter);
// Route added later skips the middlewareapp.post("/admin-api/config", updateConfig);

Fixed

ts
const admin = express.Router();admin.use(requireSession, requireRole("admin"));
admin.post("/config", updateConfig);app.use("/admin", admin);

Attack context

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

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

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