CVE-2005-0868: AS/400 Telnet 5250 terminal emulation clients, as implemented by (1) IBM client access, (2) Bosanova, (3) Powe

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HIGH 7.5MITIGATEMITIGATEMITIGATE

CVE-2005-0868 is a high-severity flaw (CVSS 7.5) affecting launcher400, client access, tn5250. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

AS/400 Telnet 5250 terminal emulation clients, as implemented by (1) IBM client access, (2) Bosanova, (3) PowerTerm, (4) Mochasoft, and possibly other emulations, allows malicious AS/400 servers to execute arbitrary commands via a STRPCO (Start PC Organizer) command followed by STRPCCMD (Start PC command), as demonstrated by creating a backdoor account using REXEC.

Why this priority

High severity
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	1.7% (top 23%)
CISA exploited list	No
Published	2005-05-02
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: bosanova · ibm · mochasoft · powerterm

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2005-05-02 04:00 UTCPublished CVE record published
2026-06-16 22:11 UTCUpdated Record last modified

bosanova launcher400 MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy launcher400 || rpm -q launcher400 || launcher400 --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

ibm client access MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy client-access || rpm -q client-access || client-access --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

mochasoft tn5250 MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy tn5250 || rpm -q tn5250 || tn5250 --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

powerterm interconnect MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy interconnect || rpm -q interconnect || interconnect --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2005-0868?

launcher400: mitigate or apply the listed mitigation; client access: mitigate or apply the listed mitigation; tn5250: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2005-0868 being exploited?

CVE-2005-0868 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2005-0868 affect?

CVE-2005-0868 affects launcher400, client access, tn5250. Severity is high (CVSS 7.5). AS/400 Telnet 5250 terminal emulation clients, as implemented by (1) IBM client access, (2) Bosanova, (3) PowerTerm, (4) Mochasoft, and possibly other emulations, allows malicious AS/400 servers to execute arbitrary commands via a STRPCO (S

How urgent is CVE-2005-0868?

Priority 51/100. High severity; Public exploit reference

References

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