CVE-2007-1057

CVE-2007-1057 is a medium-severity vulnerability in Nortel Net Direct Client with a CVSS 2.0 base score of 6.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

The Net Direct client for Linux before 6.0.5 in Nortel Application Switch 2424, VPN 3050 and 3070, and SSL VPN Module 1000 extracts and executes files with insecure permissions, which allows local users to exploit a race condition to replace a world-writable file in /tmp/NetClient and cause another user to execute arbitrary code when attempting to execute this client, as demonstrated by replacing /tmp/NetClient/client.

Frequently asked questions

What is CVE-2007-1057?
The Net Direct client for Linux before 6.0.5 in Nortel Application Switch 2424, VPN 3050 and 3070, and SSL VPN Module 1000 extracts and executes files with insecure permissions, which allows local users to exploit a race condition to replace a world-writable file in /tmp/NetClient and cause another user to execute arbitrary code when attempting to execute this client, as demonstrated by replacing /tmp/NetClient/client.
How severe is CVE-2007-1057?
CVE-2007-1057 has a CVSS 2.0 base score of 6.9, rated medium severity.
Is CVE-2007-1057 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-1057?
CVE-2007-1057 affects Nortel Net Direct Client. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2007-1057?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2007-1057 published?
CVE-2007-1057 was published on 2007-02-21 and last updated on 2026-06-16.

References

Affected products (1)