Is CVE-2017-17848 in the CISA KEV catalog?

No. CVE-2017-17848 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-17848?

CVE-2017-17848 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2017-17848?

CVE-2017-17848 has an EPSS score of 1.84% (76th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2017-17848?

Upgrade enigmail on debian 11 to 2:1.9.9-1 or later.

CVE & CISA-KEV Catalog

CVE-2017-17848

HIGHEPSS 76th pctl

7.5

CVSS v3

NVD

Description

An issue was discovered in Enigmail before 1.9.9. In a variant of CVE-2017-17847, signature spoofing is possible for multipart/related messages because a signed message part can be referenced with a cid: URI but not actually displayed. In other words, the entire containing message appears to be signed, but the recipient does not see any of the signed text.

CWE-347

How to fix

Remediation Available

enigmailDebian

Fixed in:2:1.9.9-1CVE-2017-17848

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 InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

1.84%probability of exploitation in 30 days

76thpercentile

Elevated risk: more likely to be exploited than 76% of all known CVEs.

References

Third-Party Advisory7

Other references2

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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.