How severe is CVE-2017-1000369?

CVE-2017-1000369 has a CVSS 3.x base score of 4.0, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2017-1000369 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-1000369?

CVE-2017-1000369 primarily affects Exim. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-1000369?

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

When was CVE-2017-1000369 published?

CVE-2017-1000369 was published on 2017-06-19 and last updated on 2026-06-17.

CVE-2017-1000369

CVE-2017-1000369 is a medium-severity vulnerability in Exim with a CVSS 3.x base score of 4.0. 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-404.

Key facts

Severity: Medium (CVSS 3.x base score 4.0)
CVSS v2: 2.1
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-404
Affected product: Exim
Published: 2017-06-19
Last modified: 2026-06-17

Description

Exim supports the use of multiple "-p" command line arguments which are malloc()'ed and never free()'ed, used in conjunction with other issues allows attackers to cause arbitrary code execution. This affects exim version 4.89 and earlier. Please note that at this time upstream has released a patch (commit 65e061b76867a9ea7aeeb535341b790b90ae6c21), but it is not known if a new point release is available that addresses this issue at this time.

Frequently asked questions

What is CVE-2017-1000369?: Exim supports the use of multiple "-p" command line arguments which are malloc()'ed and never free()'ed, used in conjunction with other issues allows attackers to cause arbitrary code execution. This affects exim version 4.89 and earlier. Please note that at this time upstream has released a patch (commit 65e061b76867a9ea7aeeb535341b790b90ae6c21), but it is not known if a new point release is available that addresses this issue at this time.
How severe is CVE-2017-1000369?: CVE-2017-1000369 has a CVSS 3.x base score of 4.0, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2017-1000369 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-1000369?: CVE-2017-1000369 primarily affects Exim. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-1000369?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-1000369 published?: CVE-2017-1000369 was published on 2017-06-19 and last updated on 2026-06-17.

References

Affected products (18)

cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.88:-:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.88:rc1:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.88:rc2:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.88:rc3:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.88:rc4:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.88:rc5:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.88:rc6:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.89:-:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.89:rc1:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.89:rc2:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.89:rc3:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.89:rc4:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.89:rc5:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.89:rc6:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.89:rc7:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

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