How severe is CVE-2001-1125?

CVE-2001-1125 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2001-1125 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2001-1125?

CVE-2001-1125 affects Symantec Liveupdate. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2001-1125?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2001-1125 published?

CVE-2001-1125 was published on 2001-10-05 and last updated on 2026-06-16.

CVE-2001-1125

CVE-2001-1125 is a critical-severity vulnerability in Symantec Liveupdate with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-494.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 2% (83rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-494
Affected product: Symantec Liveupdate
Published: 2001-10-05
Last modified: 2026-06-16

Description

Symantec LiveUpdate before 1.6 does not use cryptography to ensure the integrity of download files, which allows remote attackers to execute arbitrary code via DNS spoofing of the update.symantec.com site.

Frequently asked questions

What is CVE-2001-1125?: Symantec LiveUpdate before 1.6 does not use cryptography to ensure the integrity of download files, which allows remote attackers to execute arbitrary code via DNS spoofing of the update.symantec.com site.
How severe is CVE-2001-1125?: CVE-2001-1125 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2001-1125 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2001-1125?: CVE-2001-1125 affects Symantec Liveupdate. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2001-1125?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2001-1125 published?: CVE-2001-1125 was published on 2001-10-05 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:symantec:liveupdate:*:*:*:*:*:*:*:*

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