A Software Vulnerability Rating Approach Based on the Vulnerability Database

Table 4

Theoretical exploitability score comparison.

AV	AC	AU	Count^a	𝐸(𝑣,𝑡)	𝐸 (v2)
Local	High	Multiple	4	1.1	0
Local	High	Single	30	1.8	1.5
Local	High	None	437	3.6	1.9
Local	Medium	Multiple	2	0.9	0
Local	Medium	Single	83	2.3	2.7
Local	Medium	None	1122	4.5	3.4
Local	Low	Multiple	2	0.9	0
Local	Low	Single	193	2.9	3.1
Local	Low	None	5268	6.6	3.9
Adj.Net.	High	Multiple	1	0.8	0
Adj.Net.	High	Single	4	1.1	2.5
Adj.Net.	High	None	22	1.7	3.2
Adj.Net.	Medium	Multiple	0	0	0
Adj.Net.	Medium	Single	19	1.6	4.4
Adj.Net.	Medium	None	66	2.2	5.5
Adj.Net.	Low	Multiple	1	0.8	0
Adj.Net.	Low	Single	21	1.7	5.1
Adj.Net.	Low	None	124	2.6	6.5
Network	High	Multiple	7	1.3	0
Network	High	Single	213	3.0	3.9
Network	High	None	1884	5.1	4.9
Network	Medium	Multiple	5	1.2	0
Network	Medium	Single	902	4.3	6.8
Network	Medium	None	14889	8.6	8.6
Network	Low	Multiple	6	1.2	0
Network	Low	Single	1708	5.0	8.0
Network	Low	None	27419	10.0	10.0

aA total of 54432 vulnerabilities in 𝒱(2012) at 𝑡=2012.