may 2025
- cves
- 3,980
- against an average 2025 month
- 1.0×
- busiest day
- may 1, 372
- used in real attacks
- 19
may 2025 brought 3,980 cves, close to an average 2025 month.
7 of its 31 days ran above the 2025 average for that weekday.
372
on may 1, the busiest day. the linux kernel team published 245 of them at once.
347
rated critical, cvss 9 or higher. 303 of them can be hit over the network with no login and nothing for a user to click.
603
came in three single drops: the linux kernel team 245 on may 1, wpscan 203 on may 15, patchstack 155 on may 7.
19 already used in real attacks
cisa kev, as of oct 24, 2026
- 5microsoft windowsmay 13
- 3telemessage tm sgnlmay 8, 28
- 2sysaidmay 7
- 2ivanti endpoint manager mobilemay 13
- 1srimax output messengermay 5
- 1craft cmsmay 7
- 1fortinet productsmay 13
- 1samsung magicinfo 9 servermay 13
- 1sap netweavermay 13
- 1smartbedded meteobridgemay 21
and 1 more productall 19 with cve idshide the list
- may 5srimax output messengercve-2025-27920
- may 7sysaid sysaid on-premcve-2025-2775
- may 7sysaid sysaid on-premcve-2025-2776
- may 7craft cms craft cmscve-2025-35939
- may 8telemessage tm sgnlcve-2025-47729
- may 13microsoft windowscve-2025-30397
- may 13microsoft windowscve-2025-30400
- may 13microsoft windowscve-2025-32701
- may 13microsoft windowscve-2025-32706
- may 13microsoft windowscve-2025-32709
- may 13fortinet multiple productscve-2025-32756
- may 13sap netweavercve-2025-42999
- may 13ivanti endpoint manager mobile (epmm)cve-2025-4427
- may 13ivanti endpoint manager mobile (epmm)cve-2025-4428
- may 13samsung magicinfo 9 servercve-2025-4632
- may 21versa concertocve-2025-34026
- may 21smartbedded meteobridgecve-2025-4008
- may 28telemessage tm sgnlcve-2025-48927
- may 28telemessage tm sgnlcve-2025-48928
cisa keeps adding older cves when attacks come to light, so this list can still grow.
this poster
- period
- may 1 to 31, 2025
- cves
- 3,980
- data
- cve list v5, cisa kev, drawn 2026-10-24
- format
- 3:4, drawn for 45 × 60 cm
