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CVE-2006-6076· NVD / CVE Program· CNA mitre

Buffer overflow in the Tape Engine (tapeeng.exe) in CA (formerly Computer Associates) BrightStor ARCserve Backup 11.5 and earlier allows rem

Buffer overflow in the Tape Engine (tapeeng.exe) in CA (formerly Computer Associates) BrightStor ARCserve Backup 11.5 and earlier allows remote attackers to execute arbitrary code via certain RPC requests to TCP port 6502.

CriticalCVSS 10.0 · v2.0—Weaponized No fix recorded
Published
Nov 24, 2006
Updated
Jun 16, 2026
EPSS
70.9% · 99th percentile
CWE
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Action score

61

This week

Don’t wait for the next maintenance window.

CVSS
40 / 40 · 10.0 / 10
CISA KEV
0 / 30 · Not listed
EPSS
21 / 30 · 70.9%

Affected systems

VendorProduct
cabrightstor arcserve backup
cabrightstor arcserve backup agent
broadcombrightstor arcserve backup

Affected versions

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

  • broadcom brightstor arcserve backupup to 11.5 inclusive
  • broadcom brightstor arcserve backup11.1
  • broadcom brightstor arcserve backup11.5
  • ca brightstor arcserve backup11
  • ca brightstor arcserve backup11.1
  • ca brightstor arcserve backup agent11.0
  • ca brightstor arcserve backup agent11.1

Same product

ca: all records

Other highest-scoring records for the same primary product.

  • CVE-2007-2139Multiple stack-based buffer overflows in the SUN RPC service in CA (formerly Computer Associates) BrightStor ARCserve Media Server, as used
    63This week
  • CVE-2006-5143Multiple buffer overflows in CA BrightStor ARCserve Backup r11.5 SP1 and earlier, r11.1, and 9.01; BrightStor ARCserve Backup for Windows r1
    54Plan
  • CVE-2007-4620Multiple stack-based buffer overflows in Computer Associates (CA) Alert Notification Service (Alert.exe) 8.1.586.0, 8.0.450.0, and 7.1.758.0
    52Plan
  • CVE-2005-3653Heap-based buffer overflow in the iGateway service for various Computer Associates (CA) iTechnology products, in iTechnology iGateway before
    46Plan
  • CVE-2005-1018Buffer overflow in the UniversalAgent for Computer Associates (CA) BrightStor ARCserve Backup allows remote authenticated users to cause a d
    46Plan
  • CVE-2008-2241Directory traversal vulnerability in caloggerd in CA BrightStor ARCServe Backup 11.0, 11.1, and 11.5 allows remote attackers to append arbit
    44Plan

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

Weaponized

A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.

Evidence

  • Metasploit module ×2
  • 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 entryremote2010-05-09
Metasploit moduleexploit/windows/brightstor/tape_engineCA BrightStor ARCserve Tape Engine Buffer Overflowexploit2006-11-21
Metasploit moduleexploit/windows/brightstor/tape_engine_0x8aCA BrightStor ARCserve Tape Engine 0x8A Buffer Overflowexploit2010-10-04

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. Metasploit-4 d
  2. Published
  3. First PoC+1261 d
  4. TodaySep 30, 2026+7250 d
EPSS, last 120 days+1% in 7 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.

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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)

—

CVSS vector

AV:N/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.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

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