How severe is CVE-2005-3733?

CVE-2005-3733 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2005-3733 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2005-3733?

CVE-2005-3733 primarily affects Juniper Junos E. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2005-3733?

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

When was CVE-2005-3733 published?

CVE-2005-3733 was published on 2005-11-21 and last updated on 2026-06-16.

CVE-2005-3733

CVE-2005-3733 is a high-severity vulnerability in Juniper Junos E with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 5% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Juniper Junos E
Published: 2005-11-21
Last modified: 2026-06-16

Description

The Internet Key Exchange version 1 (IKEv1) implementation in Juniper JUNOS and JUNOSe software for M, T, and J-series routers before release 6.4, and E-series routers before 7-1-0, allows remote attackers to cause a denial of service and possibly execute arbitrary code via crafted IKE packets, as demonstrated by the PROTOS ISAKMP Test Suite for IKEv1. NOTE: due to the lack of details in the advisory, it is unclear which of CVE-2005-3666, CVE-2005-3667, and/or CVE-2005-3668 this issue applies to.

Frequently asked questions

What is CVE-2005-3733?: The Internet Key Exchange version 1 (IKEv1) implementation in Juniper JUNOS and JUNOSe software for M, T, and J-series routers before release 6.4, and E-series routers before 7-1-0, allows remote attackers to cause a denial of service and possibly execute arbitrary code via crafted IKE packets, as demonstrated by the PROTOS ISAKMP Test Suite for IKEv1. NOTE: due to the lack of details in the advisory, it is unclear which of CVE-2005-3666, CVE-2005-3667, and/or CVE-2005-3668 this issue applies to.
How severe is CVE-2005-3733?: CVE-2005-3733 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2005-3733 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2005-3733?: CVE-2005-3733 primarily affects Juniper Junos E. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2005-3733?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2005-3733 published?: CVE-2005-3733 was published on 2005-11-21 and last updated on 2026-06-16.

References

Affected products (8)

cpe:2.3:o:juniper:junos_e:*:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_j:*:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_m:*:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_t:*:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junose_e:*:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junose_j:*:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junose_m:*:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junose_t:*:*:*:*:*:*:*:*

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