How severe is CVE-2002-1755?

CVE-2002-1755 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2002-1755 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-2002-1755?

CVE-2002-1755 primarily affects Tinc. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2002-1755?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2002-1755 published?

CVE-2002-1755 was published on 2002-12-31 and last updated on 2026-06-16.

CVE-2002-1755

CVE-2002-1755 is a medium-severity vulnerability in Tinc with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 1% (62nd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Tinc
Published: 2002-12-31
Last modified: 2026-06-16

Description

tinc 1.0pre3 and 1.0pre4 VPN does not authenticate forwarded packets, which allows remote attackers to inject data into user sessions without detection, and possibly control the data contents via cut-and-paste attacks on CBC.

Frequently asked questions

What is CVE-2002-1755?: tinc 1.0pre3 and 1.0pre4 VPN does not authenticate forwarded packets, which allows remote attackers to inject data into user sessions without detection, and possibly control the data contents via cut-and-paste attacks on CBC.
How severe is CVE-2002-1755?: CVE-2002-1755 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2002-1755 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-2002-1755?: CVE-2002-1755 primarily affects Tinc. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2002-1755?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2002-1755 published?: CVE-2002-1755 was published on 2002-12-31 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:tinc:tinc:1.0pre3:*:*:*:*:*:*:*
cpe:2.3:a:tinc:tinc:1.0pre4:*:*:*:*:*:*:*

More vulnerabilities in Tinc

CVE-2001-1505 — Medium (CVSS 5.0): tinc 1.0pre3 and 1.0pre4 allows remote attackers to inject data into user sessions by sniffing and replaying packets.

All CVEs affecting Tinc →