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CVE-2006-3840· NVD / CVE Program· CNA mitre

The SMB Mailslot parsing functionality in PAM in multiple ISS products with XPU (24.39/1.78/epj/x.x.x.1780), including Proventia A, G, M, Se

Noroxi assessment

Priority: Monitor (action score 21/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 2.3% (FIRST EPSS); higher than 83.6% of all records.
  • No special conditions are required; it is repeatable.
  • According to the record, no fixed version is available yet.

Low priority for now. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

The SMB Mailslot parsing functionality in PAM in multiple ISS products with XPU (24.39/1.78/epj/x.x.x.1780), including Proventia A, G, M, Server, and Desktop, BlackICE PC and Server Protection 3.6, and RealSecure 7.0, allows remote attackers to cause a denial of service (infinite loop) via a crafted SMB packet that is not properly handled by the SMB_Mailslot_Heap_Overflow decode.

MediumCVSS 5.0 · v2.0—No exploit No fix recorded
Published
Jul 27, 2006
Updated
Jun 16, 2026
EPSS
2.3% · 83th percentile

Report tools

JSON

Action score

21

Monitor

Low priority for now.

CVSS
20 / 40 · 5.0 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 2.3%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2006-3840

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
issblackice pc protection
issblackice server protection
issproventia desktop
issrealsecure desktop
issrealsecure network
issrealsecure server sensor
issproventia a series xpu
issproventia g series xpu
issproventia m series xpu
issproventia server

Affected versions

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

  • iss blackice pc protection3.6cpk
  • iss blackice server protection3.6cpk
  • iss proventia a series xpuall versions
  • iss proventia desktop8.0.675.1790
  • iss proventia desktop8.0.812.1790
  • iss proventia g series xpuall versions
  • iss proventia m series xpuall versions
  • iss proventia server1.0.914.1880
  • iss realsecure desktop7.0epk
  • iss realsecure network7.0
  • iss realsecure server sensor7.0

Same product

iss: all records

Other highest-scoring records for the same primary product.

  • CVE-2004-1714BlackICE PC Protection and Server Protection installs (1) firewall.ini, (2) blackice.ini, (3) sigs.ini and (4) protect.ini with Everyone Ful
    28Monitor
  • CVE-2006-4541RapDrv.sys in BlackICE PC Protection 3.6.cpn, cpj, cpiE, and possibly 3.6 and earlier, allows local users to cause a denial of service (cras
    18Monitor
  • CVE-2006-3999ISS BlackICE PC Protection 3.6.cpj, 3.6.cpiE, and possibly earlier versions do not properly monitor the integrity of the pamversion.dll Blac
    18Monitor
  • CVE-2004-2126The upgrade for BlackICE PC Protection 3.6 and earlier sets insecure permissions for .INI files such as (1) blackice.ini, (2) firewall.ini,
    18Monitor
  • CVE-2006-7129ISS BlackICE PC Protection 3.6 cpj and cpu, and possibly earlier versions, allows local users to bypass the protection scheme by using the Z
    8Monitor

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.

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
none
Integrity
none
Availability
P · the service can be disrupted
Attack complexity
Low
Confidentiality impact
None
Integrity impact
None
Availability impact
P

Weakness class (CWE)

CWE-399 · Resource Management Errors

CVSS vector

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

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.

Change log

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

References

Show all references (10 more)

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

All records