How severe is CVE-2007-5030?

CVE-2007-5030 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2007-5030 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-5030?

CVE-2007-5030 affects Dibbler. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2007-5030?

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

When was CVE-2007-5030 published?

CVE-2007-5030 was published on 2007-09-21 and last updated on 2026-06-16.

CVE-2007-5030

CVE-2007-5030 is a medium-severity vulnerability in Dibbler 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. The underlying weakness is classified as CWE-189.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-189
Affected product: Dibbler
Published: 2007-09-21
Last modified: 2026-06-16

Description

Multiple integer overflows in Dibbler 0.6.0 allow remote attackers to cause a denial of service (daemon crash) via packets containing options with large lengths, which trigger attempts at excessive memory allocation, as demonstrated by (1) the TSrvMsg constructor in SrvMessages/SrvMsg.cpp; the (2) TClntMsg, (3) TClntOptIAAddress, (4) TClntOptIAPrefix, (5) TOptVendorSpecInfo, and (6) TOptOptionRequest constructors; and the (7) TRelIfaceMgr::decodeRelayRepl, (8) TRelMsg::decodeOpts, and (9) TSrvIfaceMgr::decodeRelayForw methods.

Frequently asked questions

What is CVE-2007-5030?: Multiple integer overflows in Dibbler 0.6.0 allow remote attackers to cause a denial of service (daemon crash) via packets containing options with large lengths, which trigger attempts at excessive memory allocation, as demonstrated by (1) the TSrvMsg constructor in SrvMessages/SrvMsg.cpp; the (2) TClntMsg, (3) TClntOptIAAddress, (4) TClntOptIAPrefix, (5) TOptVendorSpecInfo, and (6) TOptOptionRequest constructors; and the (7) TRelIfaceMgr::decodeRelayRepl, (8) TRelMsg::decodeOpts, and (9) TSrvIfaceMgr::decodeRelayForw methods.
How severe is CVE-2007-5030?: CVE-2007-5030 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2007-5030 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-5030?: CVE-2007-5030 affects Dibbler. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2007-5030?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2007-5030 published?: CVE-2007-5030 was published on 2007-09-21 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:dibbler:dibbler:0.6.0:*:*:*:*:*:*:*

More vulnerabilities in Dibbler

CVE-2007-5028 — High (CVSS 7.5): Dibbler 0.6.0 on Linux uses weak world-writable permissions for unspecified files in /var/lib/dibbler, which has…
CVE-2007-5029 — Medium (CVSS 5.0): Dibbler 0.6.0 does not verify that certain length parameters are appropriate for buffer sizes, which allows remote…
CVE-2007-5031 — Medium (CVSS 5.0): The TSrvOptIA_NA::rebind method in SrvOptions/SrvOptIA_NA.cpp in Dibbler 0.6.0 allows remote attackers to cause a…

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