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CVE-2012-4953· NVD / CVE Program· CNA certcc

The decomposer engine in Symantec Endpoint Protection (SEP) 11.0, Symantec Endpoint Protection Small Business Edition 12.0, Symantec AntiVir

The decomposer engine in Symantec Endpoint Protection (SEP) 11.0, Symantec Endpoint Protection Small Business Edition 12.0, Symantec AntiVirus Corporate Edition (SAVCE) 10.x, and Symantec Scan Engine (SSE) before 5.2.8 does not properly perform bounds checks of the contents of CAB archives, which allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted file.

CriticalCVSS 9.3 · v2.0—No exploit No fix recorded
Published
Nov 14, 2012
Updated
Jun 16, 2026
EPSS
6.0% · 93th percentile
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Report tools

JSON

Action score

39

Monitor

Low priority for now.

CVSS
37 / 40 · 9.3 / 10
CISA KEV
0 / 30 · Not listed
EPSS
2 / 30 · 6.0%

Affected systems

VendorProduct
symantecantivirus
symantecendpoint protection
symantecscan engine

Affected versions

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

  • symantec antivirus10.1.0
  • symantec antivirus10.1.4
  • symantec antivirus10.1.5
  • symantec antivirus10.1.6
  • symantec antivirus10.1.7
  • symantec antivirus10.1.8
  • symantec antivirus10.1.9
  • symantec endpoint protection11.0
  • symantec endpoint protection12.0
  • symantec scan engineup to 5.2 inclusive

Other highest-scoring records for the same primary product.

  • CVE-2009-1429The Intel LANDesk Common Base Agent (CBA) in Symantec Alert Management System 2 (AMS2), as used in Symantec System Center (SSS); Symantec An
    66This week
  • CVE-2009-1430Multiple stack-based buffer overflows in IAO.EXE in the Intel Alert Originator Service in Symantec Alert Management System 2 (AMS2), as used
    54Plan
  • CVE-2010-0111HDNLRSVC.EXE in the Intel Alert Handler service (aka Symantec Intel Handler service) in Intel Alert Management System (aka AMS or AMS2), as
    47Plan
  • CVE-2010-0108Buffer overflow in the cliproxy.objects.1 ActiveX control in the Symantec Client Proxy (CLIproxy.dll) in Symantec AntiVirus 10.0.x, 10.1.x b
    46Plan
  • CVE-2009-1431XFR.EXE in the Intel File Transfer service in the console in Symantec Alert Management System 2 (AMS2), as used in Symantec System Center (S
    39Monitor
  • CVE-2011-0688Intel Alert Management System (aka AMS or AMS2), as used in Symantec Antivirus Corporate Edition (SAVCE) 10.x before 10.1 MR10, Symantec Sys
    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

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

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.

No dated events beyond publication.

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.

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

    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
    M
    Confidentiality impact
    C
    Integrity impact
    C
    Availability impact
    C

    CVSS vector

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

    nvd-primary

    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

    All records