Is CVE-2017-7443 in the CISA KEV catalog?

No. CVE-2017-7443 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-7443?

CVE-2017-7443 has a CVSS v3 base score of 6.1 (MEDIUM).

What is the EPSS score for CVE-2017-7443?

CVE-2017-7443 has an EPSS score of 0.71% (49th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2017-7443?

Upgrade apt-cacher on debian 11 to 1.7.15 or later.

CVE & CISA-KEV Catalog

CVE-2017-7443

MEDIUM

6.1

CVSS v3

NVD

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.

CWE-113

How to fix

Remediation Available

apt-cacherDebian

Fixed in:1.7.15CVE-2017-7443

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeChanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Exploit Intelligence

0.71%probability of exploitation in 30 days

49thpercentile

Moderate risk: more likely to be exploited than 49% of all known CVEs.

References

Patch2

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-13.