How severe is CVE-2017-12471?

CVE-2017-12471 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-2017-12471 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-12471?

CVE-2017-12471 affects Ccn-lite. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-12471?

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-2017-12471 published?

CVE-2017-12471 was published on 2018-02-07 and last updated on 2026-06-17.

CVE-2017-12471

CVE-2017-12471 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: 2% (77th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Ccn-lite
Published: 2018-02-07
Last modified: 2026-06-17

Description

The cnb_parse_lev function in CCN-lite before 2.00 allows context-dependent attackers to have unspecified impact by leveraging failure to check for out-of-bounds conditions, which triggers an invalid read in the hexdump function.

Frequently asked questions

What is CVE-2017-12471?: The cnb_parse_lev function in CCN-lite before 2.00 allows context-dependent attackers to have unspecified impact by leveraging failure to check for out-of-bounds conditions, which triggers an invalid read in the hexdump function.
How severe is CVE-2017-12471?: CVE-2017-12471 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-2017-12471 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-12471?: CVE-2017-12471 affects Ccn-lite. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-12471?: 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-2017-12471 published?: CVE-2017-12471 was published on 2018-02-07 and last updated on 2026-06-17.

References

Affected products (1)

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

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