How severe is CVE-2020-11879?

CVE-2020-11879 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2020-11879 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-11879?

CVE-2020-11879 affects Gnome Evolution. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-11879?

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

When was CVE-2020-11879 published?

CVE-2020-11879 was published on 2020-04-17 and last updated on 2026-06-17.

CVE-2020-11879

CVE-2020-11879 is a medium-severity vulnerability in Gnome Evolution with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.3
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Gnome Evolution
Published: 2020-04-17
Last modified: 2026-06-17

Description

An issue was discovered in GNOME Evolution before 3.35.91. By using the proprietary (non-RFC6068) "mailto?attach=..." parameter, a website (or other source of mailto links) can make Evolution attach local files or directories to a composed email message without showing a warning to the user, as demonstrated by an attach=. value.

Frequently asked questions

What is CVE-2020-11879?: An issue was discovered in GNOME Evolution before 3.35.91. By using the proprietary (non-RFC6068) "mailto?attach=..." parameter, a website (or other source of mailto links) can make Evolution attach local files or directories to a composed email message without showing a warning to the user, as demonstrated by an attach=. value.
How severe is CVE-2020-11879?: CVE-2020-11879 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2020-11879 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-11879?: CVE-2020-11879 affects Gnome Evolution. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-11879?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-11879 published?: CVE-2020-11879 was published on 2020-04-17 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:gnome:evolution:*:*:*:*:*:*:*:*

More vulnerabilities in Gnome Evolution

CVE-2016-10727 — Critical (CVSS 9.8): camel/providers/imapx/camel-imapx-server.c in the IMAPx component in GNOME evolution-data-server before 3.21.2 proceeds…
CVE-2018-12422 — Critical (CVSS 9.8): addressbook/backends/ldap/e-book-backend-ldap.c in Evolution-Data-Server in GNOME Evolution through 3.29.2 might allow…
CVE-2005-0102 — Critical (CVSS 9.8): Integer overflow in camel-lock-helper in Evolution 2.0.2 and earlier allows local users or remote malicious POP3…
CVE-2008-1109 — Critical (CVSS 9.3): Heap-based buffer overflow in Evolution 2.22.1 allows user-assisted remote attackers to execute arbitrary code via a…
CVE-2009-3721 — High (CVSS 7.8): Multiple directory traversal and buffer overflow vulnerabilities were discovered in yTNEF, and in Evolution's TNEF…
CVE-2008-1108 — High (CVSS 7.6): Buffer overflow in Evolution 2.22.1, when the ITip Formatter plugin is disabled, allows remote attackers to execute…

All CVEs affecting Gnome Evolution →