month report
April 2003
Data as of Jun 4, 2026, 13:24 UTCSnapshot v1 Sources NVD+CISA KEV+EPSS+Nuclei templates Methodology →
April 2003 closed with 397 published CVEs — +3870.0% YoY . 39 criticals, microsoft led volume, mostly via internet explorer. Biggest breakout: openbsd at ×13.0 their 12-month median. Top weakness class — CWE-119 (3 CVE). 10 vendors cracked the top-100 for the first time.
Total CVEs
397
— MoM+3870.0% YoY
Severity mix
39 / 201
critical / high
KEV added
0
0 ransomware-linked
Nuclei coverage
0.0%
0 CVEs with templates
Time to exploit
How fast the community ships detection after a CVE drops.
Days → Nuclei (median)
—
n=0
Within 7 days
—%
Within 30 days
—%
Days → KEV (median)
6910
n=1
Detection gap
KEV pressure, no Nuclei coverage
April 2003 · vendors with active exploitation listed by CISA but no public detection template.
- KEV 1microsoft61 CVE
Weakness × Vendor
What's spreading where in April 2003
Cells shaded by share of vendor's hottest weakness. Click any cell to open the CWE history.
Breakout vendors
CVE count ≥3× their own 12-period median.
First time in top-100
Vendors never in top-100 in the prior 24 periods.
- #20pypi5 CVE
- #25acme labs3 CVE
- #27bzip3 CVE
- #37cray2 CVE
- #38efingerd2 CVE
- #39emumail2 CVE
- #41fraunhofer fit2 CVE
- #42gkrellm newsticker2 CVE
- #46kerio2 CVE
- #47l2tpd2 CVE
Top vendors
Ranked by distinct CVE count this period.
- 61 CVE4 critCVSS 6.9×4.7KEV 1PoC 3internet explorer (11) · internet information services (11) · internet information server (11)
- 21 CVE3 critCVSS 5.9×5.3PoC 4red hat enterprise linux (21)
- 18 CVE2 critCVSS 5.7×12.0irix (15) · irisconsole (1) · fam (1)
- 15 CVE1 critCVSS 5.6×7.5PoC 2freebsd (14) · heimdal (1) · point-to-point protocol daemon (1)
- 13 CVE1 critCVSS 6.8×3.3ios (3) · secure access control server (3) · catos (2)
- 13 CVE3 critCVSS 7.1×13.0PoC 3openbsd (8) · openssh (6)
- 13 CVECVSS 6.2×3.3PoC 1linux (12) · docbook stylesheets (1) · docbook utils (1)
- 13 CVE6 critCVSS 8.5PoC 2sunos (11) · solaris (10) · jre (2)
- 12 CVE1 critCVSS 6.6PoC 2debian gnu/linux (12)
- 11 CVE3 critCVSS 7.4×11.0PoC 1unixware (6) · openunix (5) · openserver (2)
- 11 CVE4 critCVSS 8.3PoC 1hp-ux (6) · cifs-9000 server (2) · advancestack 10base-t switching hub j3210a (1)
- 11 CVECVSS 5.3×4.4PoC 1bugzilla (10) · mozilla (1)
- 9 CVE1 critCVSS 7.3×3.0PoC 1oracle9i (5) · application server (4) · database server (3)
- 8 CVECVSS 6.3PoC 1http server (4) · tomcat (3) · mod python (1)
- 7 CVECVSS 6.3×3.5debian linux (6) · mime-support (1)
- 6 CVE4 critCVSS 9.1×3.0PoC 1tru64 (6)
- 6 CVECVSS 4.3×6.0emacs (1) · fileutils (1) · findutils (1)
- 6 CVE2 critCVSS 7.4jrun (3) · flash (1) · flash player (1)
- 5 CVE1 critCVSS 7.5PoC 1mac os x (4) · mac os x server (2) · quicktime (1)
- 5 CVECVSS 6.5NEWzope (5)
- 5 CVECVSS 6.5×3.3squid (5)
- 5 CVECVSS 7.4×5.0suse linux (5)
- 5 CVECVSS 6.5×5.0zope (5)
- 4 CVECVSS 6.9enterprise firewall (3) · gateway security (1) · norton internet security (1)
- 3 CVECVSS 5.8NEWthttpd (2) · acme server (1)
- 3 CVECVSS 5.0abyss web server (3)
- 3 CVECVSS 2.8NEWbzip2 (3)
- 3 CVECVSS 5.8ethereal (3)
- 3 CVE1 critCVSS 6.4aix (3)
- 3 CVECVSS 5.8×3.0org.apache.tomcat:tomcat (3)
- 3 CVECVSS 6.2×3.0PoC 1netbsd (3)
- 3 CVE1 critCVSS 7.8PoC 1sendmail (3) · sendmail switch (1)
- 2 CVECVSS 7.5simpleserver shout (1) · simpleserver www (1)
- 2 CVE1 critCVSS 8.2arcserve backup (2) · arcserve backup 2000 (2)
- 2 CVE1 critCVSS 8.2arcserve backup 2000 (2)
- 2 CVECVSS 5.9linux (2)
- 2 CVECVSS 6.7NEWunicos (2)
- 2 CVE1 critCVSS 7.3NEWefingerd (2)
- 2 CVECVSS 6.1NEWemumail (2) · emumail red hat linux (2) · emumail unix (2)
- 2 CVECVSS 3.5fetchmail (2)
- 2 CVECVSS 7.5NEWPoC 1bscw (2)
- 2 CVECVSS 6.3NEWgkrellm newsticker (2)
- 2 CVECVSS 7.0PoC 1hosting controller (2)
- 2 CVECVSS 6.3hylafax (2)
- 2 CVE1 critCVSS 8.8PoC 1imail (2)
- 2 CVECVSS 7.5NEWPoC 2personal firewall 2 (2)
- 2 CVECVSS 6.3NEWl2tpd (2)
- 2 CVECVSS 5.5linux kernel (2)
- 2 CVECVSS 5.9mandrake linux (2) · mandrake linux corporate server (1) · mandrake single network firewall (1)
- 2 CVECVSS 3.5PoC 1communicator (1) · navigator (1)
| # | Vendor | CVEs | Crit | KEV | Nuclei | Signals | Top products | Δ | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | microsoft | 61 | 4 | 1 | · | ×4.7KEV 1PoC 3 | internet explorer (11) · internet information services (11) · internet information server (11) | — | |
| 2 | red hat inc. | 21 | 3 | · | · | ×5.3PoC 4 | red hat enterprise linux (21) | — | |
| 3 | sgi | 18 | 2 | · | · | ×12.0 | irix (15) · irisconsole (1) · fam (1) | — | |
| 4 | freebsd | 15 | 1 | · | · | ×7.5PoC 2 | freebsd (14) · heimdal (1) · point-to-point protocol daemon (1) | — | |
| 5 | cisco | 13 | 1 | · | · | ×3.3 | ios (3) · secure access control server (3) · catos (2) | — | |
| 6 | openbsd | 13 | 3 | · | · | ×13.0PoC 3 | openbsd (8) · openssh (6) | — | |
| 7 | redhat | 13 | · | · | · | ×3.3PoC 1 | linux (12) · docbook stylesheets (1) · docbook utils (1) | — | |
| 8 | sun | 13 | 6 | · | · | PoC 2 | sunos (11) · solaris (10) · jre (2) | — | |
| 9 | сообщество свободного программного обеспечения | 12 | 1 | · | · | PoC 2 | debian gnu/linux (12) | — | |
| 10 | caldera | 11 | 3 | · | · | ×11.0PoC 1 | unixware (6) · openunix (5) · openserver (2) | — | |
| 11 | hp | 11 | 4 | · | · | PoC 1 | hp-ux (6) · cifs-9000 server (2) · advancestack 10base-t switching hub j3210a (1) | — | |
| 12 | mozilla | 11 | · | · | · | ×4.4PoC 1 | bugzilla (10) · mozilla (1) | — | |
| 13 | oracle | 9 | 1 | · | · | ×3.0PoC 1 | oracle9i (5) · application server (4) · database server (3) | — | |
| 14 | apache | 8 | · | · | · | PoC 1 | http server (4) · tomcat (3) · mod python (1) | — | |
| 15 | debian | 7 | · | · | · | ×3.5 | debian linux (6) · mime-support (1) | — | |
| 16 | compaq | 6 | 4 | · | · | ×3.0PoC 1 | tru64 (6) | — | |
| 17 | gnu | 6 | · | · | · | ×6.0 | emacs (1) · fileutils (1) · findutils (1) | — | |
| 18 | macromedia | 6 | 2 | · | · | jrun (3) · flash (1) · flash player (1) | — | ||
| 19 | apple | 5 | 1 | · | · | PoC 1 | mac os x (4) · mac os x server (2) · quicktime (1) | — | |
| 20 | pypi | 5 | · | · | · | NEW | zope (5) | — | |
| 21 | squid | 5 | · | · | · | ×3.3 | squid (5) | — | |
| 22 | suse | 5 | · | · | · | ×5.0 | suse linux (5) | — | |
| 23 | zope | 5 | · | · | · | ×5.0 | zope (5) | — | |
| 24 | symantec | 4 | · | · | · | enterprise firewall (3) · gateway security (1) · norton internet security (1) | — | ||
| 25 | acme labs | 3 | · | · | · | NEW | thttpd (2) · acme server (1) | — | |
| 26 | aprelium technologies | 3 | · | · | · | abyss web server (3) | — | ||
| 27 | bzip | 3 | · | · | · | NEW | bzip2 (3) | — | |
| 28 | ethereal group | 3 | · | · | · | ethereal (3) | — | ||
| 29 | ibm | 3 | 1 | · | · | aix (3) | — | ||
| 30 | maven | 3 | · | · | · | ×3.0 | org.apache.tomcat:tomcat (3) | — | |
| 31 | netbsd | 3 | · | · | · | ×3.0PoC 1 | netbsd (3) | — | |
| 32 | sendmail | 3 | 1 | · | · | PoC 1 | sendmail (3) · sendmail switch (1) | — | |
| 33 | analogx | 2 | · | · | · | simpleserver shout (1) · simpleserver www (1) | — | ||
| 34 | broadcom | 2 | 1 | · | · | arcserve backup (2) · arcserve backup 2000 (2) | — | ||
| 35 | ca | 2 | 1 | · | · | arcserve backup 2000 (2) | — | ||
| 36 | conectiva | 2 | · | · | · | linux (2) | — | ||
| 37 | cray | 2 | · | · | · | NEW | unicos (2) | — | |
| 38 | efingerd | 2 | 1 | · | · | NEW | efingerd (2) | — | |
| 39 | emumail | 2 | · | · | · | NEW | emumail (2) · emumail red hat linux (2) · emumail unix (2) | — | |
| 40 | fetchmail | 2 | · | · | · | fetchmail (2) | — | ||
| 41 | fraunhofer fit | 2 | · | · | · | NEWPoC 1 | bscw (2) | — | |
| 42 | gkrellm newsticker | 2 | · | · | · | NEW | gkrellm newsticker (2) | — | |
| 43 | hosting controller | 2 | · | · | · | PoC 1 | hosting controller (2) | — | |
| 44 | hylafax | 2 | · | · | · | hylafax (2) | — | ||
| 45 | ipswitch | 2 | 1 | · | · | PoC 1 | imail (2) | — | |
| 46 | kerio | 2 | · | · | · | NEWPoC 2 | personal firewall 2 (2) | — | |
| 47 | l2tpd | 2 | · | · | · | NEW | l2tpd (2) | — | |
| 48 | linux | 2 | · | · | · | linux kernel (2) | — | ||
| 49 | mandrakesoft | 2 | · | · | · | mandrake linux (2) · mandrake linux corporate server (1) · mandrake single network firewall (1) | — | ||
| 50 | netscape | 2 | · | · | · | PoC 1 | communicator (1) · navigator (1) | — |