How severe is CVE-2017-7443?

CVE-2017-7443 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2017-7443 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-7443?

CVE-2017-7443 primarily affects Apt-cacher-ng Project Apt-cacher-ng. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-7443?

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

When was CVE-2017-7443 published?

CVE-2017-7443 was published on 2017-04-05 and last updated on 2026-06-17.

CVE-2017-7443

CVE-2017-7443 is a medium-severity vulnerability in Apt-cacher-ng Project Apt-cacher-ng with a CVSS 3.x base score of 6.1. 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-113.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (49th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-113
Affected product: Apt-cacher-ng Project Apt-cacher-ng
Published: 2017-04-05
Last modified: 2026-06-17

Description

apt-cacher before 1.7.15 and apt-cacher-ng before 3.4 allow HTTP response splitting via encoded newline characters, related to lack of blocking for the %0[ad] regular expression.

Frequently asked questions

What is CVE-2017-7443?: apt-cacher before 1.7.15 and apt-cacher-ng before 3.4 allow HTTP response splitting via encoded newline characters, related to lack of blocking for the %0[ad] regular expression.
How severe is CVE-2017-7443?: CVE-2017-7443 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2017-7443 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-7443?: CVE-2017-7443 primarily affects Apt-cacher-ng Project Apt-cacher-ng. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-7443?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-7443 published?: CVE-2017-7443 was published on 2017-04-05 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:apt-cacher-ng_project:apt-cacher-ng:*:*:*:*:*:*:*:*
cpe:2.3:a:apt-cacher_project:apt-cacher:*:*:*:*:*:*:*:*

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