How severe is CVE-2001-0778?

CVE-2001-0778 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2001-0778 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2001-0778?

CVE-2001-0778 affects Omnicron Omnihttpd. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2001-0778?

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

When was CVE-2001-0778 published?

CVE-2001-0778 was published on 2001-10-18 and last updated on 2026-06-16.

CVE-2001-0778

CVE-2001-0778 is a medium-severity vulnerability in Omnicron Omnihttpd 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: 6% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Omnicron Omnihttpd
Published: 2001-10-18
Last modified: 2026-06-16

Description

OmniHTTPd 2.0.8 and earlier allow remote attackers to obtain source code via a GET request with the URL-encoded symbol for a space (%20).

Frequently asked questions

What is CVE-2001-0778?: OmniHTTPd 2.0.8 and earlier allow remote attackers to obtain source code via a GET request with the URL-encoded symbol for a space (%20).
How severe is CVE-2001-0778?: CVE-2001-0778 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2001-0778 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2001-0778?: CVE-2001-0778 affects Omnicron Omnihttpd. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2001-0778?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2001-0778 published?: CVE-2001-0778 was published on 2001-10-18 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:omnicron:omnihttpd:*:*:*:*:*:*:*:*

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CVE-2001-0777 — Medium (CVSS 5.0): Omnicron OmniHTTPd 2.0.8 allows remote attackers to cause a denial of service (memory exhaustion) via a series of…
CVE-2001-0613 — Medium (CVSS 5.0): Omnicron Technologies OmniHTTPD Professional 2.08 and earlier allows a remote attacker to create a denial of service…
CVE-2001-0114 — Medium (CVSS 5.0): statsconfig.pl in OmniHTTPd 2.07 allows remote attackers to overwrite arbitrary files via the cgidir parameter.

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