CVE-2003-0743

highpriority · track · 32EPSS 0.057 · 93 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

5.65% (93rd) EPSS

CVSS 7.5 · high

Is it mine?

26 products

Check your exposure

Who says so?

2 sources

enisa_euvd · nvd

EPSS · scored 2026-10-28

Heap-based buffer overflow in smtp_in.c for Exim 3 (exim3) before 3.36 and Exim 4 (exim4) before 4.21 may allow remote attackers to execute arbitrary code via an invalid (1) HELO or (2) EHLO argument with a large number of spaces followed by a NULL character and a newline, which is not properly trimmed before the "(no argument given)" string is appended to the buffer.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.4–7.5

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4

v2.06.4mediumAV:N/AC:L/Au:N/C:P/I:P/A:P/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-122USLLM-inferred

affected products (26)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
university of cambridge exim= 3.0nvdUScpe:2.3:a:university_of_cambridge:exim:*:*:*:*:*:*:*:*
university of cambridge exim= 3.11nvdUScpe:2.3:a:university_of_cambridge:exim:*:*:*:*:*:*:*:*
university of cambridge exim= 3.12nvdUScpe:2.3:a:university_of_cambridge:exim:*:*:*:*:*:*:*:*
university of cambridge exim= 3.13nvdUScpe:2.3:a:university_of_cambridge:exim:*:*:*:*:*:*:*:*
university of cambridge exim= 3.14nvdUScpe:2.3:a:university_of_cambridge:exim:*:*:*:*:*:*:*:*
university of cambridge exim= 3.15nvdUScpe:2.3:a:university_of_cambridge:exim:*:*:*:*:*:*:*:*
university of cambridge exim= 3.16nvdUScpe:2.3:a:university_of_cambridge:exim:*:*:*:*:*:*:*:*
university of cambridge exim= 3.17nvdUScpe:2.3:a:university_of_cambridge:exim:*:*:*:*:*:*:*:*
university of cambridge exim= 3.18nvdUScpe:2.3:a:university_of_cambridge:exim:*:*:*:*:*:*:*:*
university of cambridge exim= 3.19nvdUScpe:2.3:a:university_of_cambridge:exim:*:*:*:*:*:*:*:*
university of cambridge exim= 3.20nvdUScpe:2.3:a:university_of_cambridge:exim:*:*:*:*:*:*:*:*
university of cambridge exim= 3.21nvdUScpe:2.3:a:university_of_cambridge:exim:*:*:*:*:*:*:*:*
university of cambridge exim= 3.22nvdUScpe:2.3:a:university_of_cambridge:exim:*:*:*:*:*:*:*:*
university of cambridge exim= 3.3nvdUScpe:2.3:a:university_of_cambridge:exim:*:*:*:*:*:*:*:*
university of cambridge exim= 3.3.1nvdUScpe:2.3:a:university_of_cambridge:exim:*:*:*:*:*:*:*:*
university of cambridge exim= 3.3.2nvdUScpe:2.3:a:university_of_cambridge:exim:*:*:*:*:*:*:*:*
university of cambridge exim= 3.30nvdUScpe:2.3:a:university_of_cambridge:exim:*:*:*:*:*:*:*:*
university of cambridge exim= 3.31nvdUScpe:2.3:a:university_of_cambridge:exim:*:*:*:*:*:*:*:*
university of cambridge exim= 3.32nvdUScpe:2.3:a:university_of_cambridge:exim:*:*:*:*:*:*:*:*

showing 20 of 26

also known as (2)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

enisa_euvd nvd NVD CVE.org MITRE

published 2003-10-20modified 2026-06-16

references (18)

External citations — patches, advisories, analysis.

scry

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