month report
May 2001
Data as of Jun 11, 2026, 06:04 UTCSnapshot v1 Sources CVEList V5+NVD+GHSA+CSAF+FSTEC BDU+CISA KEV+EPSS+Nuclei templates Methodology →
May 2001 closed with 292 published CVEs. 45 criticals, microsoft led volume, mostly via internet explorer. Biggest breakout: microsoft at ×17.0 their 12-month median. Top weakness class — CWE-120 (2 CVE). 10 vendors cracked the top-100 for the first time.
Total CVEs
292
— MoM— YoY
Severity mix
45 / 90
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)
—
n=0
Weakness × Vendor
What's spreading where in May 2001
Cells shaded by share of vendor's hottest weakness. Click any cell to open the CWE history.
Most discussed CVEs — May 2001
No CVE mentions in the news this month yet.
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.
- #9immunix11 CVE
- #19kth4 CVE
- #27trustix3 CVE
- #28brian stanback2 CVE
- #29brs2 CVE
- #31dcscripts2 CVE
- #32gene62 CVE
- #34macromedia2 CVE
- #39sierra2 CVE
- #41software6022 CVE
Top vendors
Ranked by distinct CVE count this period.
- 34 CVE2 critCVSS 5.6×17.0PoC 4internet explorer (10) · windows 2000 (4) · windows nt (4)
- 27 CVE2 critCVSS 3.6×3.6PoC 4linux (22) · red hat enterprise linux (13) · tmpwatch (1)
- 17 CVECVSS 3.0×4.3mandrake linux (17) · mandrake linux corporate server (7)
- 15 CVE1 critCVSS 5.3×7.5debian linux (15)
- 13 CVE1 critCVSS 5.4PoC 2freebsd (12) · ja-xklock (1)
- 13 CVECVSS 6.6×13.0PoC 3sunos (11) · solaris (7) · javaserver web dev kit (1)
- 12 CVECVSS 6.1×6.0PoC 4aix (6) · net.commerce (3) · net.commerce hosting server (2)
- 11 CVE3 critCVSS 6.2×5.5hp-ux (9) · mpe ix (2) · omniback ii (1)
- 11 CVECVSS 1.3NEWimmunix (11)
- 8 CVECVSS 5.4×4.0broadband operating system (4) · cisco 6xx routers (3) · ios (2)
- 8 CVE4 critCVSS 7.4×4.0openbsd (7) · openssh (1)
- 6 CVE2 critCVSS 7.4netbsd (6)
- 6 CVE2 critCVSS 7.8×6.0oracle8i (3) · application server (2) · solaris (1)
- 6 CVE3 critCVSS 6.8unixware (5) · openserver (2) · open desktop (1)
- 5 CVE1 critCVSS 6.5PoC 1coldfusion server (3) · forums (1) · spectra (1)
- 5 CVE2 critCVSS 7.8PoC 2fasttrack server (2) · enterprise server (2) · smartdownload (1)
- 4 CVE1 critCVSS 5.4privacy guard (2) · groff (1) · mailman (1)
- 4 CVE3 critCVSS 8.8×4.0bind (4)
- 4 CVECVSS 5.7NEWPoC 1kth kerberos (4)
- 4 CVECVSS 4.5suse linux (4)
- 3 CVECVSS 3.8×3.0linux (3)
- 3 CVECVSS 5.7unix (3)
- 3 CVE1 critCVSS 8.1×3.0PoC 1domino mail server (1) · domino r5 client (1) · domino r5 server (1)
- 3 CVE3 critCVSS 9.9irix (3)
- 3 CVE1 critCVSS 5.7reliant unix (2) · hinet lp (1)
- 3 CVE1 critCVSS 7.0PoC 1ssh (3)
- 3 CVECVSS 1.5NEWsecure linux (3)
- 2 CVE2 critCVSS 10.0NEWPoC 2bsguest.cgi (1) · bslist.cgi (1)
- 2 CVECVSS 5.0NEWPoC 1webweaver (2)
- 2 CVECVSS 1.4openlinux edesktop (2) · openlinux eserver (1) · openlinux desktop (1)
- 2 CVECVSS 6.3NEWPoC 1dcforum (2) · dcforum 2000 (2)
- 2 CVECVSS 6.3NEWPoC 1g6 ftp server (2)
- 2 CVECVSS 4.2linux kernel (2)
- 2 CVECVSS 6.3NEWjrun (1) · shockwave flash plugin (1)
- 2 CVECVSS 4.6midnight commander (2)
- 2 CVE1 critCVSS 4.7kerberos 5 (2) · kerberos (1)
- 2 CVECVSS 3.5timbuktu mac (1) · r9100 router (1)
- 2 CVECVSS 4.6openpgp (1) · pgp (1)
- 2 CVECVSS 7.5NEWhalf-life (2)
- 2 CVECVSS 5.0slackware linux (2)
- 2 CVECVSS 6.3NEW602pro lan suite (2)
- 2 CVECVSS 7.2NEWPoC 2raptor gfx pgx32 (2)
- 2 CVECVSS 5.0wftpd (2) · wftpd pro (2)
- 2 CVE1 critCVSS 8.8PoC 1interscan viruswall (1) · virus buster 2001 (1)
- 2 CVECVSS 7.5NEWhalf-life (1) · half-life dedicated server (1)
- 2 CVE1 critCVSS 5.6NEWdebian gnu/linux (2)
- 1 CVECVSS 7.5NEWadcycle (1)
- 1 CVECVSS 7.2NEWafterstep (1)
- 1 CVE1 critCVSS 10.0NEWakopia interchange (1)
- 1 CVECVSS 5.0NEWalexs ftp server (1)
| # | Vendor | CVEs | Crit | KEV | Nuclei | Signals | Top products | Δ | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | microsoft | 34 | 2 | · | · | ×17.0PoC 4 | internet explorer (10) · windows 2000 (4) · windows nt (4) | — | |
| 2 | redhat | 27 | 2 | · | · | ×3.6PoC 4 | linux (22) · red hat enterprise linux (13) · tmpwatch (1) | — | |
| 3 | mandrakesoft | 17 | · | · | · | ×4.3 | mandrake linux (17) · mandrake linux corporate server (7) | — | |
| 4 | debian | 15 | 1 | · | · | ×7.5 | debian linux (15) | — | |
| 5 | freebsd | 13 | 1 | · | · | PoC 2 | freebsd (12) · ja-xklock (1) | — | |
| 6 | sun | 13 | · | · | · | ×13.0PoC 3 | sunos (11) · solaris (7) · javaserver web dev kit (1) | — | |
| 7 | ibm | 12 | · | · | · | ×6.0PoC 4 | aix (6) · net.commerce (3) · net.commerce hosting server (2) | — | |
| 8 | hp | 11 | 3 | · | · | ×5.5 | hp-ux (9) · mpe ix (2) · omniback ii (1) | — | |
| 9 | immunix | 11 | · | · | · | NEW | immunix (11) | — | |
| 10 | cisco | 8 | · | · | · | ×4.0 | broadband operating system (4) · cisco 6xx routers (3) · ios (2) | — | |
| 11 | openbsd | 8 | 4 | · | · | ×4.0 | openbsd (7) · openssh (1) | — | |
| 12 | netbsd | 6 | 2 | · | · | netbsd (6) | — | ||
| 13 | oracle | 6 | 2 | · | · | ×6.0 | oracle8i (3) · application server (2) · solaris (1) | — | |
| 14 | sco | 6 | 3 | · | · | unixware (5) · openserver (2) · open desktop (1) | — | ||
| 15 | allaire | 5 | 1 | · | · | PoC 1 | coldfusion server (3) · forums (1) · spectra (1) | — | |
| 16 | netscape | 5 | 2 | · | · | PoC 2 | fasttrack server (2) · enterprise server (2) · smartdownload (1) | — | |
| 17 | gnu | 4 | 1 | · | · | privacy guard (2) · groff (1) · mailman (1) | — | ||
| 18 | isc | 4 | 3 | · | · | ×4.0 | bind (4) | — | |
| 19 | kth | 4 | · | · | · | NEWPoC 1 | kth kerberos (4) | — | |
| 20 | suse | 4 | · | · | · | suse linux (4) | — | ||
| 21 | conectiva | 3 | · | · | · | ×3.0 | linux (3) | — | |
| 22 | digital | 3 | · | · | · | unix (3) | — | ||
| 23 | lotus | 3 | 1 | · | · | ×3.0PoC 1 | domino mail server (1) · domino r5 client (1) · domino r5 server (1) | — | |
| 24 | sgi | 3 | 3 | · | · | irix (3) | — | ||
| 25 | siemens | 3 | 1 | · | · | reliant unix (2) · hinet lp (1) | — | ||
| 26 | ssh | 3 | 1 | · | · | PoC 1 | ssh (3) | — | |
| 27 | trustix | 3 | · | · | · | NEW | secure linux (3) | — | |
| 28 | brian stanback | 2 | 2 | · | · | NEWPoC 2 | bsguest.cgi (1) · bslist.cgi (1) | — | |
| 29 | brs | 2 | · | · | · | NEWPoC 1 | webweaver (2) | — | |
| 30 | caldera | 2 | · | · | · | openlinux edesktop (2) · openlinux eserver (1) · openlinux desktop (1) | — | ||
| 31 | dcscripts | 2 | · | · | · | NEWPoC 1 | dcforum (2) · dcforum 2000 (2) | — | |
| 32 | gene6 | 2 | · | · | · | NEWPoC 1 | g6 ftp server (2) | — | |
| 33 | linux | 2 | · | · | · | linux kernel (2) | — | ||
| 34 | macromedia | 2 | · | · | · | NEW | jrun (1) · shockwave flash plugin (1) | — | |
| 35 | midnight commander | 2 | · | · | · | midnight commander (2) | — | ||
| 36 | mit | 2 | 1 | · | · | kerberos 5 (2) · kerberos (1) | — | ||
| 37 | netopia | 2 | · | · | · | timbuktu mac (1) · r9100 router (1) | — | ||
| 38 | pgp | 2 | · | · | · | openpgp (1) · pgp (1) | — | ||
| 39 | sierra | 2 | · | · | · | NEW | half-life (2) | — | |
| 40 | slackware | 2 | · | · | · | slackware linux (2) | — | ||
| 41 | software602 | 2 | · | · | · | NEW | 602pro lan suite (2) | — | |
| 42 | tech-source | 2 | · | · | · | NEWPoC 2 | raptor gfx pgx32 (2) | — | |
| 43 | texas imperial software | 2 | · | · | · | wftpd (2) · wftpd pro (2) | — | ||
| 44 | trendmicro | 2 | 1 | · | · | PoC 1 | interscan viruswall (1) · virus buster 2001 (1) | — | |
| 45 | valve software | 2 | · | · | · | NEW | half-life (1) · half-life dedicated server (1) | — | |
| 46 | сообщество свободного программного обеспечения | 2 | 1 | · | · | NEW | debian gnu/linux (2) | — | |
| 47 | adcycle | 1 | · | · | · | NEW | adcycle (1) | — | |
| 48 | afterstep.org | 1 | · | · | · | NEW | afterstep (1) | — | |
| 49 | akopia | 1 | 1 | · | · | NEW | akopia interchange (1) | — | |
| 50 | alex linde | 1 | · | · | · | NEW | alexs ftp server (1) | — |
Sectors
Solution categories ranked by distinct CVE count this period.
- Operating Systems122 CVE21 crit26 vendorsCVSS 6.3freebsd (12) · sunos (11) · openbsd (7)
- Enterprise Software39 CVE7 crit12 vendorsCVSS 7.2hp-ux (9) · aix (6) · net.commerce (3)
- 9 crit21 vendorsCVSS 10.0ssh (3) · g6 ftp server (2) · wftpd (2)
- Security Products26 CVE1 crit11 vendorsCVSS 7.5immunix (11) · secure linux (3) · interscan viruswall (1)
- Consumer Software18 CVE5 crit12 vendorsCVSS 7.8enterprise server (2) · fasttrack server (2) · bugzilla (1)
- Web & CMS Plugins17 CVE4 crit14 vendorsCVSS 10.0webweaver (2) · bsguest.cgi (1) · bslist.cgi (1)
- OSS Libraries9 CVE2 crit6 vendorsCVSS 7.2privacy guard (2) · bubblemon (1) · gnuserv (1)
- Databases9 CVE4 crit5 vendorsCVSS 8.3oracle8i (3) · application server (2) · firebird (1)
- Cloud & SaaS7 CVE2 crit3 vendorsCVSS 7.5coldfusion server (3) · forums (1) · iplanet web server (1)
- Communications7 CVE4 crit7 vendorsCVSS 9.0mailman webmail (1) · metaweb (1) · pppoe (1)
- DevTools & CI3 CVE3 vendorsCVSS 5.4eperl (1) · the bat (1) · webmin (1)
- Hardware Firmware3 CVE3 vendorsCVSS 7.2eudora (1)
- Mobile Apps1 CVE1 vendorsCVSS 4.6palm os (1)
- Unclassified22 CVE5 crit21 vendorsCVSS 6.8raptor gfx pgx32 (2) · adcycle (1) · afterstep (1)
| Sector | CVEs | Crit | KEV | Vendors | Products | Avg CVSS | Top products |
|---|---|---|---|---|---|---|---|
| Operating Systems▸ 3 | 122 | 21 | · | 26 | 57 | 6.3 | freebsd (12) · sunos (11) · openbsd (7) |
| Enterprise Software▸ 3 | 39 | 7 | · | 12 | 24 | 7.2 | hp-ux (9) · aix (6) · net.commerce (3) |
| Networking Infrastructure▸ 5 | 36 | 9 | · | 21 | 31 | 10.0 | ssh (3) · g6 ftp server (2) · wftpd (2) |
| Security Products▸ 6 | 26 | 1 | · | 11 | 13 | 7.5 | immunix (11) · secure linux (3) · interscan viruswall (1) |
| Consumer Software▸ 5 | 18 | 5 | · | 12 | 19 | 7.8 | enterprise server (2) · fasttrack server (2) · bugzilla (1) |
| Web & CMS Plugins▸ 5 | 17 | 4 | · | 14 | 16 | 10.0 | webweaver (2) · bsguest.cgi (1) · bslist.cgi (1) |
| OSS Libraries▸ 2 | 9 | 2 | · | 6 | 8 | 7.2 | privacy guard (2) · bubblemon (1) · gnuserv (1) |
| Databases▸ 2 | 9 | 4 | · | 5 | 8 | 8.3 | oracle8i (3) · application server (2) · firebird (1) |
| Cloud & SaaS▸ 2 | 7 | 2 | · | 3 | 5 | 7.5 | coldfusion server (3) · forums (1) · iplanet web server (1) |
| Communications▸ 3 | 7 | 4 | · | 7 | 7 | 9.0 | mailman webmail (1) · metaweb (1) · pppoe (1) |
| DevTools & CI▸ 1 | 3 | · | · | 3 | 3 | 5.4 | eperl (1) · the bat (1) · webmin (1) |
| Hardware Firmware▸ 3 | 3 | · | · | 3 | 3 | 7.2 | eudora (1) |
| Mobile Apps | 1 | · | · | 1 | 1 | 4.6 | palm os (1) |
| Unclassified | 22 | 5 | · | 21 | 22 | 6.8 | raptor gfx pgx32 (2) · adcycle (1) · afterstep (1) |
Weakness × Sector
Which weaknesses hit which solution categories in May 2001
Cells shaded by share of the sector's hottest weakness. Click a row to open the sector history.
120Buffer Overflow131Incorrect Buffer Size200Information Exposure119Memory Buffer Bounds22Path Traversal281CWE-281307Excessive Auth Attempts399CWE-399732Incorrect Permissions88CWE-88Operating Systems1211Networking Infrastructure21Consumer Software1Security ProductsWeb & CMS PluginsEnterprise Software1OSS Libraries1CommunicationsDatabasesCloud & SaaS