How severe is CVE-2018-7039?

CVE-2018-7039 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-2018-7039 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-7039?

CVE-2018-7039 affects Ccn-lite. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-7039?

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-2018-7039 published?

CVE-2018-7039 was published on 2018-02-14 and last updated on 2026-06-17.

CVE-2018-7039

CVE-2018-7039 is a critical-severity vulnerability in Ccn-lite 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-119.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 1% (71st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Ccn-lite
Published: 2018-02-14
Last modified: 2026-06-17

Description

CCN-lite 2.0.0 Beta allows remote attackers to cause a denial of service (buffer overflow) or possibly have unspecified other impact because the ccnl_ndntlv_prependBlob function in ccnl-pkt-ndntlv.c can be called with wrong arguments. Specifically, there is an incorrect integer data type causing a negative third argument in some cases of crafted TLV data with inconsistent length information.

Frequently asked questions

What is CVE-2018-7039?: CCN-lite 2.0.0 Beta allows remote attackers to cause a denial of service (buffer overflow) or possibly have unspecified other impact because the ccnl_ndntlv_prependBlob function in ccnl-pkt-ndntlv.c can be called with wrong arguments. Specifically, there is an incorrect integer data type causing a negative third argument in some cases of crafted TLV data with inconsistent length information.
How severe is CVE-2018-7039?: CVE-2018-7039 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-2018-7039 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-7039?: CVE-2018-7039 affects Ccn-lite. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-7039?: 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-2018-7039 published?: CVE-2018-7039 was published on 2018-02-14 and last updated on 2026-06-17.

References

https://github.com/cn-uofbasel/ccn-lite/issues/191

Affected products (1)

cpe:2.3:a:ccn-lite:ccn-lite:2.0.0:*:*:*:*:*:*:*

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CVE-2018-6948 — Critical (CVSS 9.8): In CCN-lite 2, the function ccnl_prefix_to_str_detailed can cause a buffer overflow, when writing a prefix to the…
CVE-2017-12472 — Critical (CVSS 9.8): ccnl-ext-mgmt.c in CCN-lite before 2.00 allows context-dependent attackers to have unspecified impact by leveraging…
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