How severe is CVE-1999-0273?

CVE-1999-0273 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-1999-0273 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-1999-0273?

CVE-1999-0273 affects Sun Sunos. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-1999-0273?

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

When was CVE-1999-0273 published?

CVE-1999-0273 was published on 1998-01-01 and last updated on 2026-06-16.

CVE-1999-0273

CVE-1999-0273 is a medium-severity vulnerability in Sun Sunos 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% (68th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Sun Sunos
Published: 1998-01-01
Last modified: 2026-06-16

Description

Denial of service through Solaris 2.5.1 telnet by sending ^D characters.

Frequently asked questions

What is CVE-1999-0273?: Denial of service through Solaris 2.5.1 telnet by sending ^D characters.
How severe is CVE-1999-0273?: CVE-1999-0273 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-1999-0273 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-1999-0273?: CVE-1999-0273 affects Sun Sunos. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-1999-0273?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-1999-0273 published?: CVE-1999-0273 was published on 1998-01-01 and last updated on 2026-06-16.

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0273

Affected products (1)

cpe:2.3:o:sun:sunos:5.5.1:*:*:*:*:*:*:*

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